text stringlengths 105 6.5k | label int64 0 1 | label_text stringclasses 2
values |
|---|---|---|
Strontium oxalate is a compound with the chemical formula . Strontium oxalate can exist either in a hydrated form () or as the acidic salt of strontium oxalate (). | 1 | Inorganic Reactions + Inorganic Compounds |
Using the appropriate reagent and conditions, alkyl, alkenyl, allylic, and α-keto sulfones may be reduced in good yield and high stereoselectivity (where applicable). Appropriate conditions for the reduction of these classes of sulfones are discussed below.
Alkyl sulfones may be reduced with sodium or lithium in liquid... | 0 | Organic Reactions |
It is disputed that Wöhlers synthesis sparked the downfall of the theory of vitalism, which states that organic matter possessed a certain vital force' common to all living things. Prior to the Wöhler synthesis, the work of John Dalton and Jöns Jacob Berzelius had already convinced chemists that organic and inorganic m... | 0 | Organic Reactions |
In free-radical chain-growth polymerization, chain termination can occur by a disproportionation step in which a hydrogen atom is transferred from one growing chain molecule to another one, which produces two dead (non-growing) chains.
:: Chain—CH–CHX + Chain—CH–CHX → Chain—CH=CHX + Chain—CH–CHX
in which, Chain— ... | 0 | Organic Reactions |
Elaidinization of oleic acid, a common component of vegetable oils, yields its trans-isomer elaidic acid. | 0 | Organic Reactions |
Lanthanum acetate is used in specialty glass manufacturing and in water treatment.
Also, it is used to produce porous lanthanum oxyfluoride (LaOF) films.
It is also used as a component in the production of ceramic products and as a catalyst in the pharmaceutical industry. | 1 | Inorganic Reactions + Inorganic Compounds |
In organic chemistry, ketonic decarboxylation (also known as decarboxylative ketonization) is a type of organic reaction and a decarboxylation converting two equivalents of a carboxylic acid () to a symmetric ketone () by the application of heat. It can be thought of as a decarboxylative Claisen condensation of two ide... | 0 | Organic Reactions |
A wide variety of divinylcyclopropanes undergo the titular reaction. These precursors have been generated by a variety of methods, including the addition of cyclopropyl nucleophiles (salts of lithium, or copper) to activated double or triple bonds, elimination of bis(2-haloethyl)cyclopropanes and cyclopropanation.
In t... | 0 | Organic Reactions |
The valence electrons of this compound match those of nitric oxide. Sulfur mononitride can be described as some average of a set of resonance structures. The singly bonded structure (first resonance structure shown) has little contribution. The formal bond order is considered to be 2.5. | 1 | Inorganic Reactions + Inorganic Compounds |
Heating hexachlorophosphazene to ca. 250 °C induces polymerisation. The tetramer also polymerises in this manner, although more slowly. The conversion is a type of ring-opening polymerisation (ROP). The ROP mechanism is found to be catalysed by Lewis acids, but is overall not very well understood. Prolonged heating of ... | 1 | Inorganic Reactions + Inorganic Compounds |
Forgione, P., Bilodeau, F. et al. reported that heteroatoms containing a carboxylic acid also are tolerated by palladium monometallic systems and undergo decarboxylative cross coupling with aryl halides. In the proposed mechanism the initial step is oxidative addition of the aryl halide forming an aryl–palladium interm... | 0 | Organic Reactions |
The first disproportionation reaction to be studied in detail was:
This was examined using tartrates by Johan Gadolin in 1788. In the Swedish version of his paper he called it . | 0 | Organic Reactions |
Reductive desulfonylation reactions lead to the replacement of a carbon-sulfur bond in the sulfonyl group with a carbon-hydrogen bond. Because the sulfonyl group is by definition attached to two carbons, however, reduction to two sets of products is possible. Mechanistic studies of reductions employing metal amalgams a... | 0 | Organic Reactions |
The halogens can all react with metals to form metal halides according to the following equation:
:2M + nX → 2MX
where M is the metal, X is the halogen, and MX is the metal halide.
In practice, this type of reaction may be very exothermic, hence impractical as a preparative technique. Additionally, many transition met... | 1 | Inorganic Reactions + Inorganic Compounds |
The thermite () reaction was discovered in 1893 and patented in 1895 by German chemist Hans Goldschmidt. Consequently, the reaction is sometimes called the "Goldschmidt reaction" or "Goldschmidt process". Goldschmidt was originally interested in producing very pure metals by avoiding the use of carbon in smelting, but ... | 1 | Inorganic Reactions + Inorganic Compounds |
*Pyrohydrolysis
**Spray roaster pyrohydrolysis
**Fluidised bed pyrohydrolysis
*Hydrothermal regeneration
*Electrolytic Fe precipitation | 1 | Inorganic Reactions + Inorganic Compounds |
Alcohols alkylate to give ethers:
When the alkylating agent is an alkyl halide, the conversion is called the Williamson ether synthesis.
Alcohols are also good alkylating agents in the presence of suitable acid catalysts. For example, most methyl amines are prepared by alkylation of ammonia with methanol. The alkyl... | 0 | Organic Reactions |
Burnt bones have been recovered from numerous Ancient Greek sanctuaries dating from the Late Bronze Age up to the Hellenistic period. The burnt bones are often calcined with a white or blueish color, allowing archaeologists to identify them as sacrificial remains. At the sanctuary to Artemis in Eretria a round altar of... | 1 | Inorganic Reactions + Inorganic Compounds |
Prior to the introduction of diethylaminosulfur trifluoride (DAST) in 1970 for the replacement of hydroxyl groups with fluoride, sulfur tetrafluoride was the reagent most commonly used to accomplish this transformation. However, sulfur tetrafluoride only reacts with the most acidic hydroxyl groups (its substrate scope ... | 0 | Organic Reactions |
Boric acid can be used as an antiseptic for minor burns or cuts and is sometimes used in salves and dressings, such as boracic lint. Boric acid is applied in a very dilute solution as an eye wash. Boric acid vaginal suppositories can be used for recurrent candidiasis due to non-albicans candida as a second line treatme... | 1 | Inorganic Reactions + Inorganic Compounds |
Diimide is most effective at reducing unpolarized carbon-carbon double or triple bonds. In reactions with other unsaturated systems, disproportionation of diimide to nitrogen gas and hydrazine is a competing process that significantly degrades the reducing agent. Many groups that are ordinarily sensitive to reductive c... | 0 | Organic Reactions |
General Control Non-Derepressible 5 (Gcn5) –related N-Acetyltransferases (GNATs) is one of the many studied families with acetylation abilities. This superfamily includes the factors Gcn5 which is included in the SAGA, SLIK, STAGA, ADA, and A2 complexes, Gcn5L, p300/CREB-binding protein associated factor (PCAF), Elp3, ... | 0 | Organic Reactions |
Simple, unhindered dialkylboranes are reactive at room temperature towards most alkenes and terminal alkynes but are difficult to prepare in high purity, since they exist in equilibrium with mono- and trialkylboranes. One common way of preparing them is the reduction of dialkylhalogenoboranes with metal hydrides. An im... | 0 | Organic Reactions |
An annulation is defined as a transformation of one or more acyclic precursors resulting in the fusion of a new ring via two newly generated bonds. These strategies can be used to create aromatic systems from acyclic precursors in a single step, with many substituents already in place. A common synthetic annulation rea... | 0 | Organic Reactions |
Factors governing organic reactions are essentially the same as that of any chemical reaction. Factors specific to organic reactions are those that determine the stability of reactants and products such as conjugation, hyperconjugation and aromaticity and the presence and stability of reactive intermediates such as fre... | 0 | Organic Reactions |
The metal chloride solution (in the most common case waste pickle liquor from a carbon steel pickling line) is fed to the venturi evaporator (III), where direct mass and heat exchange with the hot roast gas from the roaster (reactor/cyclone) takes place. The separator (IV) separates the gas and liquid phase of the vent... | 1 | Inorganic Reactions + Inorganic Compounds |
Cadmium sulfide has, like zinc sulfide, two crystal forms. The more stable hexagonal wurtzite structure (found in the mineral Greenockite) and the cubic zinc blende structure (found in the mineral Hawleyite). In both of these forms the cadmium and sulfur atoms are four coordinate. There is also a high pressure form wit... | 1 | Inorganic Reactions + Inorganic Compounds |
Asymmetric hydrogenations operate by conventional mechanisms invoked for other hydrogenations. This includes inner sphere mechanisms, outer sphere mechanisms and the σ-bond metathesis mechanisms. The type of mechanism employed by a catalyst is largely dependent on the ligands used in a system, which in turn leads to ce... | 0 | Organic Reactions |
The technique is applied to conversions that proceed via unimolecular pathways. 2-Acetoxydioxane, when heated at 425 °C converts to the highly reactive dioxene, via loss of acetic acid.
2-Furonitrile has been prepared by flash-dehydration of 2-furoic acid amide or oxime over molecular sieves. The strained ring benzo... | 0 | Organic Reactions |
Borate ions occur, alone or with other anions, in many borate and borosilicate minerals such as borax, boracite, ulexite (boronatrocalcite) and colemanite. Borates also occur in seawater, where they make an important contribution to the absorption of low frequency sound in seawater.
Borates also occur in plants, includ... | 1 | Inorganic Reactions + Inorganic Compounds |
The first to investigate trifluoromethyl groups in relationship to biological activity was F. Lehmann in 1927. An early review appeared in 1958. An early synthetic method was developed by Frédéric Swarts in 1892, based on antimony fluoride. In this reaction benzotrichloride was reacted with SbF to form PhCFCl and
PhCF.... | 0 | Organic Reactions |
Ortho lithiation can be used to generate many of the same structures as lateral lithiation; however, reactivity differences between aryl- and benzyllithium species may suggest the use of one method over the other. A useful alternative method for stereoselective functionalization of the benzylic position involves the us... | 0 | Organic Reactions |
Alkoxyaluminium hydrides are typically prepared by treatment of lithium aluminium hydride with the corresponding alcohol. Hydrogen evolution indicates the formation of alkoxyaluminium hydride products. Hindered hydrides such as lithium tri-(tert-butoxy)aluminium hydride (LTBA) are stable for long periods of time under ... | 0 | Organic Reactions |
When water is added to cement, each of the compounds undergoes hydration and contributes to the final state of the concrete. Only calcium silicates contribute to the strength. Tricalcium silicate is responsible for most of the early strength (first 7 days). Dicalcium silicate, which reacts more slowly, only contributes... | 1 | Inorganic Reactions + Inorganic Compounds |
Potassium sulfide is an inorganic compound with the formula KS. The colourless solid is rarely encountered, because it reacts readily with water, a reaction that affords potassium hydrosulfide (KSH) and potassium hydroxide (KOH). Most commonly, the term potassium sulfide refers loosely to this mixture, not the anhydro... | 1 | Inorganic Reactions + Inorganic Compounds |
In comparison to cationic cyclizations, radical cyclizations avoid issues associated with Wagner-Meerwein rearrangements, do not require strongly acidic conditions, and can be kinetically controlled. Cationic cyclizations are usually thermodynamically controlled. Radical cyclizations are much faster than analogous anio... | 0 | Organic Reactions |
In asymmetric addition of dialkylzinc compounds to aldehydes dialkyl zinc compounds can be used to perform asymmetric additions to aldehydes, generating substituted alcohols as products (See Barbier reaction). Chiral alcohols are prevalent in many natural products, drugs, and other important organic molecules. Dimethyl... | 0 | Organic Reactions |
A solution of the amide (0.365 g, 0.809 mmol), Pd(PPh) (0.187 g, 0.162 mmol), and triethylamine (1.12 mL, 8.08 mmol) in MeCN (8 mL) in a sealed tube was heated slowly to 120°. After stirring for 4 hours, the reaction mixture was cooled to room temperature, and the solvent was evaporated. The residue was chromatographed... | 0 | Organic Reactions |
Sodium borohydride and lithium aluminium hydride are commonly used for the reduction of organic compounds. These two reagents are on the extremes of reactivity—whereas lithium aluminium hydride reacts with nearly all reducible functional groups, sodium borohydride reacts with a much more limited range of functional gro... | 0 | Organic Reactions |
Histone acetylation and deacetylation are the processes by which the lysine residues within the N-terminal tail protruding from the histone core of the nucleosome are acetylated and deacetylated as part of gene regulation.
Histone acetylation and deacetylation are essential parts of gene regulation. These reactions ar... | 0 | Organic Reactions |
Metal–inorganic frameworks (MIFs) are a class of compounds consisting of metal ions or clusters coordinated to inorganic ligands to form one-, two-, or three-dimensional structures. They are a subclass of coordination polymers, with the special feature that they are often porous. They are inorganic counterpart of Meta... | 1 | Inorganic Reactions + Inorganic Compounds |
The WGS reaction is used in combination with the solid adsorption of CO in the sorption enhanced water gas shift (SEWGS) in order to produce a high pressure hydrogen stream from syngas. | 1 | Inorganic Reactions + Inorganic Compounds |
It has been reported that mammalian glycosylation can improve the therapeutic efficacy of biotherapeutics. For example, therapeutic efficacy of recombinant human interferon gamma, expressed in HEK 293 platform, was improved against drug-resistant ovarian cancer cell lines. | 0 | Organic Reactions |
The reaction mechanism involves the formation of a positively charged halonium ion in a molecule that also contains a carboxylic acid (or other functional group that is a precursor to it). The oxygen of the carboxyl acts as a nucleophile, attacking to open the halonium ring and instead form a lactone ring. The reaction... | 0 | Organic Reactions |
The chelation of lithium cation with the methoxy group is one of the most important features of the transition state for Enders hydrazone alkylation reaction. It is necessary to have this chelation effect to achieve high stereoselectivity. The development and modification of Enders hydrazone alkylation reaction mainly ... | 0 | Organic Reactions |
;Aldehydes and ketones
Polymeric hydrosilanes, such as polymethylhydrosiloxane (PHMS), may be employed to facilitate separation of the reduced products from silicon-containing byproducts.
Enantioselective reductions of ketones may be accomplished through the use of catalytic amounts of chiral transition metal complexes... | 0 | Organic Reactions |
Examples of photochemical reactions are those between certain arenes and alkenes forming [2+2] and [2+4] cycloaddition adducts. | 0 | Organic Reactions |
Biofuels that are produced through hydrothermal liquefaction are carbon neutral, meaning that there are no net carbon emissions produced when burning the biofuel. The plant materials used to produce bio-oils use photosynthesis to grow, and as such consume carbon dioxide from the atmosphere. The burning of the biofuels ... | 0 | Organic Reactions |
Complementing alkylation reactions are the reverse, dealkylations. Prevalent are demethylations, which are prevalent in biology, organic synthesis, and other areas, especially for methyl ethers and methyl amines. | 0 | Organic Reactions |
The Barton decarboxylation is a radical reaction in which a carboxylic acid is converted to a thiohydroxamate ester (commonly referred to as a Barton ester). The product is then heated in the presence of a radical initiator and a suitable hydrogen donor to afford the decarboxylated product. This is an example of a red... | 0 | Organic Reactions |
Sodium hydroxide is industrially produced as a 50% solution by variations of the electrolytic chloralkali process. Chlorine gas is also produced in this process. Solid sodium hydroxide is obtained from this solution by the evaporation of water. Solid sodium hydroxide is most commonly sold as flakes, prills, and cast bl... | 1 | Inorganic Reactions + Inorganic Compounds |
This is the fourth member of the polyoxidanes. The first three are water [(mon)oxidane], hydrogen peroxide (dioxidane), and trioxidane. Tetroxidane is more unstable than the previous compounds. The term "tetraoxidane" extends beyond the parent compound to several daughter compounds of the general formula , where R can ... | 1 | Inorganic Reactions + Inorganic Compounds |
Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula . It is a white solid ionic compound consisting of sodium cations and hydroxide anions .
Sodium hydroxide is a highly corrosive base and alkali that decomposes lipids and proteins at ambient temperatures and may cause sever... | 1 | Inorganic Reactions + Inorganic Compounds |
The Heck reaction is the palladium-catalyzed coupling of an aryl or alkenyl halide with an alkene to form a substituted alkene. Intramolecular variants of the reaction may be used to generate cyclic products containing endo or exo double bonds. Ring sizes produced by the intramolecular Heck reaction range from four to ... | 0 | Organic Reactions |
Oxocarbenium ions have been utilized in total synthesis on several occasions. A major subunit of (+)-clavosolide was synthesized with a reduction of a six-membered oxocarbenium ring. All the large substituents were found in an equatorial position, and the transformation went through the chair transition state, as predi... | 0 | Organic Reactions |
The persistent radical effect (PRE) in chemistry describes and explains the selective product formation found in certain free-radical cross-reactions. In these type of reactions, different radicals compete in secondary reactions. The so-called persistent (long-lived) radicals do not self-terminate and only react in cr... | 0 | Organic Reactions |
is shock-sensitive. Purer samples are more shock-sensitive than those contaminated with elemental sulfur. | 1 | Inorganic Reactions + Inorganic Compounds |
The C-B bonds generated by hydroboration are reactive with various reagents, the most common one being hydrogen peroxide. Because the addition of H-B to olefins is stereospecific, this oxidation reaction will be diastereoselective when the alkene is trisubstituted. Hydroboration-oxidation is thus an excellent way of pr... | 0 | Organic Reactions |
As powerful nucleophiles, enolates react readily with a variety of electrophiles. These reactions generate new C-C bonds and often new stereocenters. The stereoselectivity and regioselectivity is influenced by additives, solvent, counterions, etc. One important class of electrophiles are alkyl halides, and in this case... | 0 | Organic Reactions |
Alkylation is a chemical reaction that entails transfer of an alkyl group. The alkyl group may be transferred as an alkyl carbocation, a free radical, a carbanion, or a carbene (or their equivalents). Alkylating agents are reagents for effecting alkylation. Alkyl groups can also be removed in a process known as dealk... | 0 | Organic Reactions |
The A coupling (also known as A coupling reaction or the aldehyde-alkyne-amine reaction), coined by Prof. Chao-Jun Li of McGill University, is a type of multicomponent reaction involving an aldehyde, an alkyne and an amine which react to give a propargylamine.
The reaction proceeds via direct dehydrative condensation a... | 0 | Organic Reactions |
The molecule has a cyclic, unsaturated backbone consisting of alternating phosphorus and nitrogen centers, and can be viewed as a trimer of the hypothetical compound . Its classification as a phosphazene highlights its relationship to benzene. Hexafluorophosphazene has a hexagonal ring with six equivalent P–N bonds. E... | 1 | Inorganic Reactions + Inorganic Compounds |
Enolate activation is the simplest Conia-ene activation mode. In this mode, the carbonyl starting material is treated with a strong base, such as nBuLi, NaH, or tBuOK, to form a metal-stabilized enolate, which then attacks the tethered alkyne and transfers the metal cation. An early example of enolate activation was re... | 0 | Organic Reactions |
Aqueous zinc chloride reacts with zinc oxide to form an amorphous cement that was first investigated in 1855 by Stanislas Sorel. Sorel later went on to investigate the related magnesium oxychloride cement, which bears his name. | 1 | Inorganic Reactions + Inorganic Compounds |
Glycosylation is the process by which a carbohydrate is covalently attached to a target macromolecule, typically proteins and lipids. This modification serves various functions. For instance, some proteins do not fold correctly unless they are glycosylated. In other cases, proteins are not stable unless they contain ol... | 0 | Organic Reactions |
Of some interest in organic synthesis, electropositive metals react with many organic halides in a metal-halogen exchange:
The resulting organometallic compound is susceptible to hydrolysis:
Heavily studied examples are found in organolithium chemistry and organomagnesium chemistry. Some illustrative cases follow.
Lit... | 0 | Organic Reactions |
The Marschalk reaction in chemistry is the sodium dithionite promoted reaction of a phenolic anthraquinone with an aldehyde to yield a substituted phenolic anthraquinone after the addition of acid.
The mechanism can be found in the book Named Reactions in Organic Chemistry, and its more intuitive version is provided be... | 0 | Organic Reactions |
Edman degradation, developed by Pehr Edman, is a method of sequencing amino acids in a peptide. In this method, the amino-terminal residue is labeled and cleaved from the peptide without disrupting the peptide bonds between other amino acid residues. | 0 | Organic Reactions |
Methionine synthase regenerates methionine (Met) from homocysteine (Hcy). The overall reaction transforms 5-methyltetrahydrofolate (N-MeTHF) into tetrahydrofolate (THF) while transferring a methyl group to Hcy to form Met. Methionine Syntheses can be cobalamin-dependent and cobalamin-independent: Plants have both, anim... | 0 | Organic Reactions |
A solution of 13.0 g (0.1 mol) of 1-octanol in 25 mL of dichloromethane was added dropwise to a solution of 16.1 g (0.1 mol) of diethylaminosulfur trifluoride in 60 mL of dichloromethane cooled to –70° to –65°. The reaction mixture was warmed to 25°, 50 mL of water was added, and the lower organic layer was separated a... | 0 | Organic Reactions |
Special methods are used to produce films of CdS as components in some photoresistors and solar cells. In the chemical bath deposition method, thin films of CdS have been prepared using thiourea as the source of sulfide anions and an ammonium buffer solution to control pH:
:Cd + HO + (NH)CS + 2 NH → CdS + (N... | 1 | Inorganic Reactions + Inorganic Compounds |
The first examples of nontrigonal pnictogen compound were synthesized by Arduengo and co-workers in 1984, through condensation of a diketoamine with a phosphorus trihalide in the presence of base. This group reported also on the first systematic investigations into its chemical behavior. Later, on similar routes, the c... | 1 | Inorganic Reactions + Inorganic Compounds |
As early as the 1920s, the concept of using hot water and alkali catalysts to produce oil out of biomass was proposed. In 1939, U.S. patent 2,177,557, described a two-stage process in which a mixture of water, wood chips, and calcium hydroxide is heated in the first stage at temperatures in a range of , with the pressu... | 0 | Organic Reactions |
The two reactions in the HyS cycle are as follows:
# HSO → HO + SO + ½ O (thermochemical, T > 800 °C)
# SO + 2 HO → HSO + H (electrochemical, T = 80-120 °C)
: Net reaction: HO → H + ½ O
Sulfur dioxide acts to depolarize the anode of the electrolyzer. This results in a significant decrease in the rever... | 1 | Inorganic Reactions + Inorganic Compounds |
Optimal conditions for enantio-selective nucleophilic epoxidation depend on the substrate employed. Although a variety of substrates may be epoxidized using nucleophilic methods, each particular method tends to have limited substrate scope. This section describes asymmetric nucleophilic epoxidation methods, organizing ... | 0 | Organic Reactions |
The Lumière–Barbier method is a method of acetylating aromatic amines in aqueous solutions. Illustrative is the acetylation of aniline. First aniline is dissolved in water using one equivalent of hydrochloric acid. This solution is subsequently treated, sequentially, with acetic anhydride and aqueous sodium acetate. A... | 0 | Organic Reactions |
Magnesium oxalate is an organic compound comprising a magnesium cation with a 2+ charge bonded to an oxalate anion. It has the chemical formula MgCO. Magnesium oxalate is a white solid that comes in two forms: an anhydrous form and a dihydrate form where two water molecules are complexed with the structure. Both for... | 1 | Inorganic Reactions + Inorganic Compounds |
The product scope of this reaction is extremely broad with the use of different substrates; however development of different functionalities has required accompanied studies to determine the proper catalyst system. The most typical class of reactions involves coupling between C–COOH and C–X bonds, however C–COOH and C–... | 0 | Organic Reactions |
Following 2D SDS PAGE the proteins can be transferred to a polyvinylidene difluoride (PVDF) blotting membrane for further analysis. Edman degradations can be performed directly from a PVDF membrane. N-terminal residue sequencing resulting in five to ten amino acid may be sufficient to identify a Protein of Interest (PO... | 0 | Organic Reactions |
Like many oxometalates, orthovanadate is subject to a number of reactions, which have been analyzed by V NMR studies. At high pH, ions exist in equilibrium with . At lower pH's, condensation ensues to give various polyoxovanadates. Ultimately, decavanadate is formed. | 1 | Inorganic Reactions + Inorganic Compounds |
Aluminium hydroxide is a feedstock for the manufacture of other aluminium compounds: calcined aluminas, aluminium sulfate, polyaluminium chloride, aluminium chloride, zeolites, sodium aluminate, activated alumina, and aluminium nitrate.
Freshly precipitated aluminium hydroxide forms gels, which are the basis for the ap... | 1 | Inorganic Reactions + Inorganic Compounds |
Straight-chain azanes are sometimes indicated by the prefix n- (for normal) where a non-linear isomer exists. Although this is not strictly necessary, the usage is common in cases where there is an important difference in properties between the straight-chain and branched-chain isomers.
The members of the series (in te... | 1 | Inorganic Reactions + Inorganic Compounds |
Related to the azanes are a homologous series of functional groups, side-chains, or radicals with the general chemical formula . Examples include azanyl () and hydrazinyl. This group is generally abbreviated with the symbol N. | 1 | Inorganic Reactions + Inorganic Compounds |
In the following example, elemental aluminium reduces the oxide of another metal, in this common example iron oxide, because aluminium forms stronger and more stable bonds with oxygen than iron:
: FeO + 2 Al → 2 Fe + AlO
The products are aluminium oxide, elemental iron, and a large amount of heat. The reactants are com... | 1 | Inorganic Reactions + Inorganic Compounds |
Similar to intermolecular reactions, intramolecular reactions can show significant stereoselectivity from the ground state conformation of the molecule. In the intramolecular Diels-Alder reaction depicted below, the lowest energy conformation yields the observed product. The structure minimizing repulsive steric intera... | 0 | Organic Reactions |
The Elbs reaction is an organic reaction describing the pyrolysis of an ortho methyl substituted benzophenone to a condensed polyaromatic. The reaction is named after its inventor, the German chemist Karl Elbs, also responsible for the Elbs oxidation. The reaction was published in 1884. Elbs however did not correctly ... | 0 | Organic Reactions |
Boric acid also dissolves in anhydrous sulfuric acid according to the equation:
The product is an extremely strong acid, even stronger than the original oleum. | 1 | Inorganic Reactions + Inorganic Compounds |
The enantioselective version of the Tsuji–Trost reaction is called the Trost asymmetric allylic alkylation (Trost AAA) or simply, asymmetric allylic alkylation (AAA). These reactions are often used in asymmetric synthesis. The reaction was originally developed with a palladium catalyst supported by the Trost ligand, al... | 0 | Organic Reactions |
Enantioselective intermolecular cyclopropanation has been applied to the synthesis of the chiral cyclopropane antibiotics cilastatin.
Tandem cyclopropanation/fragmentation is a key step in the synthesis of 12-hydroxyeicosatetraenoic acid. | 0 | Organic Reactions |
Regioselective and stereoselective formation of carbon-carbon bonds adjacent to carbonyl group is an important procedure in organic chemistry. Alkylation reaction of enolates has been the main focus of the field. Both A. G. Myers and D. A. Evans developed asymmetric alkylation reactions for enolates.
The apparent short... | 0 | Organic Reactions |
Aluminium hydroxide is amphoteric. In acid, it acts as a Brønsted–Lowry base. It neutralizes the acid, yielding a salt:
In bases, it acts as a Lewis acid by binding hydroxide ions: | 1 | Inorganic Reactions + Inorganic Compounds |
In 1850, Charles-Adolphe Wurtz described a colorless platinum tetrammine with the formula [Pt(etn)]Cl 2HO; Wolffram (H. Wolffram, Dissertation, Königsberg, 1900.), whom the compound is named after, obtained a red salt from this by action of hydrogen peroxide in hydrochloric acid, and initially considered it to be isome... | 1 | Inorganic Reactions + Inorganic Compounds |
Mycophenolic acid is a Penicillium metabolite that was originally prepared via a key benzannulation step. An alkyne and a cyclobutenone were reacted to form a substituted phenol in a single step in a 73% yield (Scheme 14). Mycophenolic acid was prepared in nine steps in an overall yield of 17-19%.
In the synthesis of ... | 0 | Organic Reactions |
Typically, the rearrangement is carried out just after the formation of the divinylcyclopropane, in the same pot. Heating is sometimes necessary, particularly for trans substrates, which must undergo epimerization prior to rearrangement. With enough energy to surmount activation barriers, however, the isomerization is ... | 0 | Organic Reactions |
The Deacon process, invented by Henry Deacon, is a process used during the manufacture of alkalis (the initial end product was sodium carbonate) by the Leblanc process. Hydrogen chloride gas was converted to chlorine gas, which was then used to manufacture a commercially valuable bleaching powder, and at the same time... | 1 | Inorganic Reactions + Inorganic Compounds |
Polyphosphazenes obtained from polymerised hexachlorophosphazene (polydichlorophosphazene) have gathered attention within the field of inorganic polymers and probed investigations on the properties of elastomeric and thermoplastic derivatives. Some of them appear promising for future applications as fibre- or membrane-... | 1 | Inorganic Reactions + Inorganic Compounds |
These easily available and sterically constrained compounds are potentially suitable for an application in a wide variety of secondary processes such as small molecule activation or the generation of new catalysts based on main-group and transition-metal elements. | 1 | Inorganic Reactions + Inorganic Compounds |
NCAs are typically prepared by phosgenation of amino acids:
They were first synthesized by Hermann Leuchs by heating an N-ethoxycarbonyl or N-methoxycarbonyl amino acid chloride in a vacuum at 50-70 °C:
A moisture-tolerant route to unprotected NCAs employs epoxides as scavengers of hydrogen chloride.
This synthesis of ... | 0 | Organic Reactions |
Some representative examples of Crich’s β-mannosylation are shown in Scheme 3. It is noteworthy that, with this method in hand, primary, secondary, and tertiary alcohols (9, 12, and 13) all serve as glycosyl acceptors effectively in terms of yields and selectivity. In a recent version, the β-mannosylation of thioglycos... | 0 | Organic Reactions |
GaN crystals can be grown from a molten Na/Ga melt held under 100 atmospheres of pressure of N at 750 °C. As Ga will not react with N below 1000 °C, the powder must be made from something more reactive, usually in one of the following ways:
: 2 Ga + 2 NH → 2 GaN + 3 H
: GaO + 2 NH → 2 GaN + 3 HO
Gallium nitride can als... | 1 | Inorganic Reactions + Inorganic Compounds |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.