Question: Ketones and aldehydes react with primary amines to give imines. They react with secondary amines to give enamines (vinyl amines). (a) For review, propose a

Ketones and aldehydes react with primary amines to give imines. They react with secondary amines to give enamines (vinyl amines).
(a) For review, propose a mechanism for the following formation of an imine.

(b) Now give a mechanism for a similar reaction that gives an enamine.

NHCH + CH3NH2- +H2C an imine +H,O

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