Noun
carbanion (plural carbanions)
(organic chemistry) any organic anion of general formula R3C
Synthesis from carbonyl compounds Another important method for alkene synthesis involves construction of a new carbon–carbon double bond by coupling of a carbonyl compound (such as an aldehyde or ketone ) to a carbanion equivalent. Source: Internet
As such organo-lanthanide compounds exhibit carbanion -like behaviour, unlike the behaviour in transition metal organometallic compounds. Source: Internet
They utilise the cofactor PLP ( pyridoxal phosphate ), which functions by stabilising carbanion intermediates. Source: Internet