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Carbanion

Index Carbanion

A carbanion is an anion in which carbon is threevalent (forms three bonds) and bears a formal negative charge in at least one significant mesomeric contributor (resonance form). [1]

98 relations: Accounts of Chemical Research, Acetic acid, Acetone, Acetonitrile, Acetylacetone, Acid dissociation constant, Acid–base reaction, Alcohol, Aldol reaction, Ammonia, Aniline, Aromaticity, Arthur Lapworth, Benzene, Benzoin condensation, Benzoxazole, Bond length, Brønsted–Lowry acid–base theory, Butyllithium, Butyric acid, Carbocation, Carbon, Carbonium ion, Carboxylation, Carboxylic acid, Chirality (chemistry), Cis–trans isomerism, Conjugate acid, Conjugated system, Covalent bond, Crown ether, Cyclohexane, Cyclopentadiene, Cyclopentadienyl, Deuterium, Diethyl malonate, Dimedone, Dimethyl sulfoxide, Diphenylmethane, Dithiane, Dry ice, Enantiomer, Ethanol, Fluorene, Fluoroform, Grignard reaction, Hexafluoroacetylacetone, Hydrogen chloride, Hydrogen cyanide, Indene, ..., Inductive effect, Ion, Journal of the American Chemical Society, Malononitrile, Meldrum's acid, Methane, Methanol, Methylene bridge, Methylmagnesium chloride, Michael reaction, Mineral acid, Molecular geometry, Mosher's acid, N-Butyllithium, Nitrile anion, Nitrogen inversion, Nitromethane, Nuclear magnetic resonance spectroscopy, Nucleophile, Optical rotation, Orbital hybridisation, Organic chemistry, Organolithium reagent, Organophosphorus compound, Organosodium chemistry, Organotin chemistry, Petroleum ether, Phenylacetylene, Philip Power, Phosphorane, Propene, Proton nuclear magnetic resonance, Racemization, Reactive intermediate, Resonance (chemistry), Retrosynthetic analysis, Salt, Schlosser's base, Tetrahydrofuran, Tetramethylammonium chloride, Thioxanthene, Toluene, Triflidic acid, Trigonal pyramidal molecular geometry, Triphenylmethane, Walden inversion, Wilhelm Schlenk, Xanthene. Expand index (48 more) »

Accounts of Chemical Research

Accounts of Chemical Research is a monthly peer-reviewed scientific journal published by the American Chemical Society containing overviews of basic research and applications in chemistry and biochemistry.

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Acetic acid

Acetic acid, systematically named ethanoic acid, is a colourless liquid organic compound with the chemical formula CH3COOH (also written as CH3CO2H or C2H4O2).

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Acetone

Acetone (systematically named propanone) is the organic compound with the formula (CH3)2CO.

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Acetonitrile

Acetonitrile is the chemical compound with the formula.

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Acetylacetone

Acetylacetone is an organic compound that exists in two tautomeric forms that interconvert rapidly and are treated as a single compound in most applications.

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Acid dissociation constant

An acid dissociation constant, Ka, (also known as acidity constant, or acid-ionization constant) is a quantitative measure of the strength of an acid in solution.

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Acid–base reaction

An acid–base reaction is a chemical reaction that occurs between an acid and a base, which can be used to determine pH.

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Alcohol

In chemistry, an alcohol is any organic compound in which the hydroxyl functional group (–OH) is bound to a carbon.

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Aldol reaction

The aldol reaction is a means of forming carbon–carbon bonds in organic chemistry.

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Ammonia

Ammonia is a compound of nitrogen and hydrogen with the formula NH3.

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Aniline

Aniline is an organic compound with the formula C6H5NH2.

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Aromaticity

In organic chemistry, the term aromaticity is used to describe a cyclic (ring-shaped), planar (flat) molecule with a ring of resonance bonds that exhibits more stability than other geometric or connective arrangements with the same set of atoms.

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Arthur Lapworth

Arthur Lapworth FRS (10 October 1872 – 5 April 1941) was a Scottish chemist.

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Benzene

Benzene is an important organic chemical compound with the chemical formula C6H6.

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Benzoin condensation

The benzoin condensation is a reaction (often called a condensation reaction, for historical reasons) between two aromatic aldehydes, particularly benzaldehyde.

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Benzoxazole

Benzoxazole is an aromatic organic compound with a molecular formula C7H5NO, a benzene-fused oxazole ring structure, and an odor similar to pyridine.

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Bond length

In molecular geometry, bond length or bond distance is the average distance between nuclei of two bonded atoms in a molecule.

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Brønsted–Lowry acid–base theory

The Brønsted–Lowry theory is an acid–base reaction theory which was proposed independently by Johannes Nicolaus Brønsted and Thomas Martin Lowry in 1923.

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Butyllithium

Butyllithium may refer to one of 5 isomeric organolithium reagents of which 3 are commonly used in chemical synthesis.

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Butyric acid

Butyric acid (from βούτῡρον, meaning "butter"), also known under the systematic name butanoic acid, abbreviated BTA, is a carboxylic acid with the structural formula CH3CH2CH2-COOH.

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Carbocation

A carbocation (/karbɔkətaɪː'jɔ̃/) is an ion with a positively charged carbon atom.

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Carbon

Carbon (from carbo "coal") is a chemical element with symbol C and atomic number 6.

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Carbonium ion

In chemistry, carbonium ion is any cation that has a pentavalent carbon atom, The name carbonium may also be used for the simplest member of the class, properly called methanium, where the five valences are filled with hydrogen atoms.

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Carboxylation

Carboxylation is a chemical reaction in which a carboxylic acid group is produced by treating a substrate with carbon dioxide.

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Carboxylic acid

A carboxylic acid is an organic compound that contains a carboxyl group (C(.

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Chirality (chemistry)

Chirality is a geometric property of some molecules and ions.

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Cis–trans isomerism

Cis–trans isomerism, also known as geometric isomerism or configurational isomerism, is a term used in organic chemistry.

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Conjugate acid

A conjugate acid, within the Brønsted–Lowry acid–base theory, is a species formed by the reception of a proton (H+) by a base—in other words, it is a base with a hydrogen ion added to it.

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Conjugated system

In chemistry, a conjugated system is a system of connected p-orbitals with delocalized electrons in molecules which are conventionally represented as having alternating single and multiple bonds, which in general may lower the overall energy of the molecule and increase stability.

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Covalent bond

A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms.

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Crown ether

Crown ethers are cyclic chemical compounds that consist of a ring containing several ether groups.

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Cyclohexane

Cyclohexane is a cycloalkane with the molecular formula C6H12 (the alkyl is abbreviated Cy).

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Cyclopentadiene

Cyclopentadiene is an organic compound with the formula C5H6.

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Cyclopentadienyl

Cyclopentadienyl can refer to.

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Deuterium

Deuterium (or hydrogen-2, symbol or, also known as heavy hydrogen) is one of two stable isotopes of hydrogen (the other being protium, or hydrogen-1).

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Diethyl malonate

Diethyl malonate, also known as DEM, is the diethyl ester of malonic acid.

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Dimedone

Dimedone is a cyclic diketone used in organic chemistry to determine whether a compound contains an aldehyde group.

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Dimethyl sulfoxide

Dimethyl sulfoxide (DMSO) is an organosulfur compound with the formula (CH3)2SO.

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Diphenylmethane

Diphenylmethane is an organic compound with the formula (C6H5)2CH2.

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Dithiane

A dithiane is a heterocyclic compound composed of a cyclohexane core structure wherein two methylene bridges (-- units) are replaced by sulfur centres.

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Dry ice

Dry ice, sometimes referred to as "cardice" (chiefly by British chemists), is the solid form of carbon dioxide.

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Enantiomer

In chemistry, an enantiomer, also known as an optical isomer (and archaically termed antipode or optical antipode), is one of two stereoisomers that are mirror images of each other that are non-superposable (not identical), much as one's left and right hands are the same except for being reversed along one axis (the hands cannot be made to appear identical simply by reorientation).

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Ethanol

Ethanol, also called alcohol, ethyl alcohol, grain alcohol, and drinking alcohol, is a chemical compound, a simple alcohol with the chemical formula.

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Fluorene

Fluorene, or 9H-fluorene, is a polycyclic aromatic hydrocarbon.

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Fluoroform

Fluoroform is the chemical compound with the formula CHF3.

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Grignard reaction

The Grignard reaction (pronounced) is an organometallic chemical reaction in which alkyl, vinyl, or aryl-magnesium halides (Grignard reagents) add to a carbonyl group in an aldehyde or ketone.

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Hexafluoroacetylacetone

Hexafluoroacetylacetone is the chemical compound with the nominal formula CF3C(O)CH2C(O)CF3 (often abbreviated as hfacH).

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Hydrogen chloride

The compound hydrogen chloride has the chemical formula and as such is a hydrogen halide.

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Hydrogen cyanide

Hydrogen cyanide (HCN), sometimes called prussic acid, is a chemical compound with the chemical formula HCN.

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Indene

Indene is a flammable polycyclic hydrocarbon with chemical formula C9H8.

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Inductive effect

In chemistry and physics, the inductive effect is an experimentally observed effect of the transmission of charge through a chain of atoms in a molecule, resulting in a permanent dipole in a bond.

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Ion

An ion is an atom or molecule that has a non-zero net electrical charge (its total number of electrons is not equal to its total number of protons).

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Journal of the American Chemical Society

The Journal of the American Chemical Society (also known as JACS) is a weekly peer-reviewed scientific journal that was established in 1879 by the American Chemical Society.

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Malononitrile

Malononitrile, also propanedinitrile or malonodinitrile, is a nitrile with the formula CH2(CN)2.

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Meldrum's acid

Meldrum's acid or 2,2-dimethyl-1,3-dioxane-4,6-dione is an organic compound.

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Methane

Methane is a chemical compound with the chemical formula (one atom of carbon and four atoms of hydrogen).

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Methanol

Methanol, also known as methyl alcohol among others, is a chemical with the formula CH3OH (a methyl group linked to a hydroxyl group, often abbreviated MeOH).

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Methylene bridge

In organic chemistry, a methylene bridge, methylene spacer, or methanediyl group is any part of a molecule with formula --; namely, a carbon atom bound to two hydrogen atoms and connected by single bonds to two other distinct atoms in the rest of the molecule.

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Methylmagnesium chloride

Methylmagnesium chloride is an organometallic compound with the general formula CH3MgCl.

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Michael reaction

The Michael reaction or Michael addition is the nucleophilic addition of a carbanion or another nucleophile to an α,β-unsaturated carbonyl compound.

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Mineral acid

A mineral acid (or inorganic acid) is an acid derived from one or more inorganic compounds.

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Molecular geometry

Molecular geometry is the three-dimensional arrangement of the atoms that constitute a molecule.

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Mosher's acid

Mosher's acid, or α-methoxy-α-trifluoromethylphenylacetic acid (MTPA) is a carboxylic acid which was first used by Harry Stone Mosher as a chiral derivatizing agent.

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N-Butyllithium

n-Butyllithium (abbreviated n-BuLi) is an organolithium reagent.

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Nitrile anion

Nitrile anions are nitriles lacking a proton at the position α to the nitrile group.

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Nitrogen inversion

In chemistry, nitrogen inversion is a fluxional process in nitrogen and amines, whereby the molecule "turns inside out".

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Nitromethane

Nitromethane is an organic compound with the chemical formula.

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Nuclear magnetic resonance spectroscopy

Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy or magnetic resonance spectroscopy (MRS), is a spectroscopic technique to observe local magnetic fields around atomic nuclei.

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Nucleophile

Nucleophile is a chemical species that donates an electron pair to an electrophile to form a chemical bond in relation to a reaction.

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Optical rotation

Optical rotation or optical activity (sometimes referred to as rotary polarization) is the rotation of the plane of polarization of linearly polarized light as it travels through certain materials.

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Orbital hybridisation

In chemistry, orbital hybridisation (or hybridization) is the concept of mixing atomic orbitals into new hybrid orbitals (with different energies, shapes, etc., than the component atomic orbitals) suitable for the pairing of electrons to form chemical bonds in valence bond theory.

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Organic chemistry

Organic chemistry is a chemistry subdiscipline involving the scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms.

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Organolithium reagent

Organolithium reagents are organometallic compounds that contain carbon – lithium bonds.

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Organophosphorus compound

Organophosphorus compounds are organic compounds containing phosphorus.

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Organosodium chemistry

Organosodium chemistry is the chemistry of organometallic compounds containing a carbon to sodium chemical bond.

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Organotin chemistry

Organotin compounds or stannanes are chemical compounds based on tin with hydrocarbon substituents.

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Petroleum ether

Petroleum ether is the petroleum fraction consisting of aliphatic hydrocarbons and boiling in the range 35‒60 °C; commonly used as a laboratory solvent. Despite the name, petroleum ether is not classified as an ether; the term is used only figuratively, signifying extreme lightness and volatility.

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Phenylacetylene

Phenylacetylene is an alkyne hydrocarbon containing a phenyl group.

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Philip Power

Philip P. Power FRS, is Professor of Inorganic Chemistry at the University of California, Davis.

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Phosphorane

A phosphorane (IUPAC name: λ5-phosphane) is a functional group in organophosphorus chemistry with pentavalent phosphorus.

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Propene

Propene, also known as propylene or methyl ethylene, is an unsaturated organic compound having the chemical formula C3H6.

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Proton nuclear magnetic resonance

Proton nuclear magnetic resonance (proton NMR, hydrogen-1 NMR, or 1H NMR) is the application of nuclear magnetic resonance in NMR spectroscopy with respect to hydrogen-1 nuclei within the molecules of a substance, in order to determine the structure of its molecules.

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Racemization

In chemistry, racemization is the conversion of an enantiomerically pure mixture (one where only one enantiomer is present) into a mixture where more than one of the enantiomers are present.

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Reactive intermediate

In chemistry, a reactive intermediate or an intermediate is a short-lived, high-energy, highly reactive molecule.

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Resonance (chemistry)

In chemistry, resonance or mesomerism is a way of describing delocalized electrons within certain molecules or polyatomic ions where the bonding cannot be expressed by one single Lewis structure.

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Retrosynthetic analysis

Retrosynthetic analysis is a technique for solving problems in the planning of organic syntheses.

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Salt

Salt, table salt or common salt is a mineral composed primarily of sodium chloride (NaCl), a chemical compound belonging to the larger class of salts; salt in its natural form as a crystalline mineral is known as rock salt or halite.

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Schlosser's base

Schlosser's base (or Lochmann-Schlosser base) describes various superbasic mixtures of an alkyllithium compound and a potassium alkoxide.

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Tetrahydrofuran

Tetrahydrofuran (THF) is an organic compound with the formula (CH2)4O.

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Tetramethylammonium chloride

Tetramethylammonium chloride is one of the simplest quaternary ammonium salts, with four methyl groups tetrahedrally attached to the central N. The chemical formula (CH3)4N+Cl− is often abbreviated further as Me4N+Cl−.

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Thioxanthene

Thioxanthene is a chemical compound in which the oxygen atom in xanthene is replaced with a sulfur atom.

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Toluene

Toluene, also known as toluol, is an aromatic hydrocarbon.

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Triflidic acid

Triflidic acid (IUPAC name: trismethane, abbreviated formula: Tf3CH) is an organic superacid.

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Trigonal pyramidal molecular geometry

In chemistry, a trigonal pyramid is a molecular geometry with one atom at the apex and three atoms at the corners of a trigonal base, resembling a tetrahedron (not to be confused with the tetrahedral geometry).

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Triphenylmethane

Triphenylmethane, or triphenyl methane, is the hydrocarbon with the formula (C6H5)3CH.

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Walden inversion

Walden inversion is the inversion of a chiral center in a molecule in a chemical reaction.

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Wilhelm Schlenk

Wilhelm Johann Schlenk (22 March 1879 – 29 April 1943) was a German chemist.

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Xanthene

Xanthene (9H-xanthene, 10H-9-oxaanthracene) is the organic compound with the formula is CH22O.

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Active hydrogen compound, CH acidity, Carbanions, Carbon acid, Carbon nucleophile.

References

[1] https://en.wikipedia.org/wiki/Carbanion

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