from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An anion in which carbon carries a negative charge and an unshared pair of electrons.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any organic anion of general formula R3C-
Sorry, no etymologies found.
The chemical interconversion of fumarase reaction, a carbanion mechanism, is the most rapid part of the reaction cycle.
Complete exchange would suggest a carbanion intermediate but would not implicate the enzyme as the base.
The carbanion intermediate analog, 2-hydroxy, 3-nitropropionate is competitive with respect to both malate and fumarate and therefore represents the intermediate species in the recycling whereas all other inhibitors are competitive with only one or the other of the substrates and therefore represent product species.
Q: what did the electrophilic H+ say to to the carbanion?
When a base removes one proton from either of the non-carbonyl carbons of acetone, a carbanion is produced in which one of the carbon has a negative charge.
Aldol condensation reactions occur when the carbanion carbon of an enolate reacts with the carbonyl carbon of a ketone or aldehyde, forming a new carbon-carbon bond.