carbanion


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car·ban·i·on

 (kär-băn′ī′ən, -ī′ŏn′)
n.
An anion in which carbon carries a negative charge and an unshared pair of electrons.

carbanion

(kɑːˈbænaɪən)
n
(Chemistry) a negatively charged organic ion in which most of the negative charge is localized on a carbon atom. Compare carbonium ion
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References in periodicals archive ?
We hypothesized that 1H-perfluoroalkanes (1HPFAs) would form as the presumed carbanion leaving group of the PFPiA molecules.
an acryloyl, the acceptor), acidic C-H bonds (as present in aceto-acetate and malonate moieties, the donor), and a base catalyst strong enough to abstract the proton of this C-H bond yielding a nucleophilic carbanion that can add to the double bond.
The reason was that due to the great difference in temperature between the exterior and inside of oil shale sample, the condensation and aromatorization reactions, as well as decomposition of some minerals with carbanion were suppressed.
1] (15)) used in this work (B:) to result in carbanion stabilized by its electron-withdrawing groups ([BTA.
Methylation was performed with potassium methyl-suphinyl carbanion and methyl iodide in dimethyl sulphoxide as described by Harris et al.
Highlights included the opening plenary lecture by Gregory Petsko, Brandeis University, entitled, "The Road to Resolution: A Structural Enzymologist's Adventures Beyond 1 Angstrom," and the plenary lecture by NSERC Gold Medalist Tito Scaiano, FCIC, University of Ottawa, entitled, "Carbanion Studies: From Drug Photostability to Carbanion Kinetics and New Photocages," on the final day of the conference.
Initially, the methyl at 5-position of compound 1 is turned to methylene carbanion A under alkaline condition and produces a H2O molecule.
Technical presentations will include the following: "Stretching the temperature limits of HNBR elastomers," John Dato, Bayer Polymers; "Use of clean paraffinic processing oils to improve properties," Nadine Yenni, ChevronTexaco; "Synthesis of new elastomers using carbanion and free radical chemistries," Thieo E.
Gibson; "Delocalized carbanion initiators: Controlled routes towards catenated polymers," B.