In organic chemistry, a carbanion is an anion in which carbon is negatively charged.[failed verification] Formally, a carbanion is the conjugate base of...

In organic chemistry, a carboxylic acid is an organic acid that contains a carboxyl group (−C(=O)−OH) attached to an R-group. The general formula of a...

chemical reaction used in organic chemistry of stabilized phosphonate carbanions with aldehydes (or ketones) to produce predominantly E-alkenes. In 1958...

(N≡CCH2–), a type of nitrile group The cyanomethyl radical (N≡CCH2·) The cyanomethyl carbanion (N≡CCH2−) Ethynyl Hydroxymethyl Trifluoromethyl v t e...

Current consensus suggests that the mechanism proceeds through a stabilized carbanion at the C6 after loss of carbon dioxide. This mechanism was suggested from...

molecular entity. Finally, conjugate base refers to the formation of the carbanion intermediate, which is the conjugate base of the starting material. E1cB...

Organomercury chemistry refers to the study of organometallic compounds that contain mercury. Typically the Hg–C bond is stable toward air and moisture...

as an acid by donating its proton and forming a carbanion. Normally, reactions that form carbanions are highly unfavorable, but the positive charge on...

dipolar molecule containing a formally negatively charged atom (usually a carbanion) directly attached to a heteroatom with a formal positive charge (usually...

Streitwieser, Jr., E. Juaristi, and L. L. Nebenzahl, in Comprehensive Carbanion Chemistry Volume 5: Part A Structure and Reactivity (Studies in Organic...

centred on a carbon, it is termed a carbocation (if positively charged) or carbanion (if negatively charged). Monatomic ions are formed by the gain or loss...

the rate of exchange is primarily influenced by the stabilities of the carbanion intermediates (sp > sp2 > sp3) of the organolithium reagents. Two mechanisms...

action the substrate first ionizes into a carbanion and a positively charged organic residue. The carbanion then quickly recombines with the electrophile...

with pKa 8.95) because of the additional aromatic stabilization of the carbanion. Using the Knoevenagel condensation reaction, barbituric acid can form...

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...

The OGDH E1-TPP mechanism involves the formation of a stabilized carbanion intermediate....

the right. A carbanion is a organic molecule where a carbon atom is not electron deficient but contain an overall negative charge. Carbanions are strong...

In organic chemistry, an acyl chloride (or acid chloride) is an organic compound with the functional group −C(=O)Cl. Their formula is usually written R−COCl...

nucleophilicity of the attacking nucleophile. Nucleophilic addition of a carbanion or another nucleophile to the double bond of an alpha, beta-unsaturated...

storage by amine gas treating. Only very strong nucleophiles, like the carbanions provided by Grignard reagents and organolithium compounds react with CO2...

groups, which make the adjacent methylene hydrogen acidic enough to form a carbanion when reacted with the base, B:. For the alkene (the Michael acceptor)...

by decarboxylation, followed by hydrolysis of the resulting stabilized carbanion. ZCH2CO2CH3 + I− + H2O → ZCH3 + CH3I + CO2 + OH− The reaction is carried...

lithium diisopropylamide and sodium hydride. Stabilization of the resultant carbanion is provided by the S(O)R group. The sodium derivative of DMSO formed in...

Because of the high polarity of the C-Na bonds, they behave like sources of carbanions (salts with organic anions). Some well-known derivatives include sodium...

Magnesium, Zinc, and Cadmium". Org. React. 8: 28–58. Huryn, D. M. (1991). "Carbanions of Alkali and Alkaline Earth Cations: (ii) Selectivity of Carbonyl Addition...

associate with the alcohol group. The resulting carbanion is stabilized by the structure of the carbanion itself via resonance charge distribution and by...

performs a nucleophilic conjugate addition to give a stabilized carbanion. This carbanion then attacks the same oxygen atom, displacing a leaving group...

characterization of the lifetimes and thermodynamic stability for carbocation and carbanion intermediates of organic reactions in water and the determination of the...

((CH3)2CO) is about 1020 times more acidic than methane. The resulting carbanions are key intermediates in many reactions in organic synthesis and biosynthesis...

Mannich reaction, in addition to an amine and a carbonyl compound, is a carbanion, which plays the role of the nucleophile in the nucleophilic addition...