2-phenyl-2-(2'-piperidinylidene)acetate derivative, process...

Details 2-phenyl-2-(2'-piperidinylidene)acetate derivative, process... 2-phenyl-2-(2'-piperidinylidene)acetate derivative, process...

C - Chemistry, Metallurgy

07

D

C07D 211/70 (2006.01) C07C 229/34 (2006.01) C07C 271/22 (2006.01)

Patent

CA 2211934

Disclosed is a 2-phenyl-2-(2'-piperidinylidene)acetate derivative suitably used for a raw material of a 2-phenyl-2-(2'-piperidinyl)acetate derivative and a process for manufacturing the same. Also disclosed is a process for manufacturing an optically active 2-phenyl-2-(2'-piperidinyl) acetate derivative which is a major intermediate for an antidepressant. The 2-phenyl-2-(2'-piperidinylidene) acetate derivative is manufactured by cyclizing a 7-(N-substituted amino)-3-oxo-2-heptanoate derivative. The optically active 2-phenyl-2-(2'-piperidinyl) acetate derivative is manufactured by asymmetrically hydrogenating the 2-phenyl-2-(2'-piperidinylidene) acetate derivative in the presence of a complex of a Group VIII transition metal or an acid.

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