Carboxylic Acid and Acid DerivativesHard
Question
In the cannizaro reaction the inntermediate that will be the best hydride donor is
Options
A.
B.
C.
D.
Solution
In general aldehydes contining no α- Hatom undergo Canniaro’s reaction. it followers the familiar pattern of carbonylcompoundsd i.e. nucleophilic addition and involves two successive additions. In step (i) a hydroxide ion is added to give intermediate compound
(a). The presence of nagative charge on compound (a) aids in loss of hydride ion.
(a). The presence of nagative charge on compound (a) aids in loss of hydride ion.
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