Schiff bases. Part III. Amine and ketone exchange reactions with Schiff bases
Abstract
Certain ketimines of the type R12 CN–CHR22 undergo amine exchange when heated with diphenylmethylamine to give the ketimines R12CN–CHPh2, which rearrange to the tautomers R12CH–NCPh2. These undergo a second amine exchange with the production of N-(diphenylmethylene)diphenylmethylamine. The same compound is obtained from the ketone exchange reaction of the ketimines R12CN–CHPh2 with benzophenone.