Process for preparing 3-phenoxy-1-azetidines and carboxamide...

Details Process for preparing 3-phenoxy-1-azetidines and carboxamide... Process for preparing 3-phenoxy-1-azetidines and carboxamide...

C - Chemistry, Metallurgy

07

D

260/335.3

C07D 205/04 (2006.01)

Patent

CA 1221975

PROCESS FOR PREPARING 3-PHENOXY-1- AZETIDINES AND CARBOXAMIDE DERIVATIVES ABSTRACT An improved process is disclosed for preparing 3-phenoxyazetidines which utilizes a phase transfer catalyst to add the phenoxy group to azetidine blocked in the l-position by a diphenylmethane group and utilizes a stabilizing tertiary amine base to prevent dimerization during hydroqenolysis to remove the blocking group. The crude product containing diphenylmethane may be used without purification to prepare 3-phenoxy-1- azetidinecarboxamides.

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