L. Micouin et al., ASYMMETRIC-SYNTHESIS .39. SYNTHESIS OF 3-SUBSTITUTED PIPERIDIN-2-ONESFROM CHIRAL NON-RACEMIC LACTAMS, Tetrahedron, 52(22), 1996, pp. 7719-7726
A series of 3-substituted piperidines in enantiomerically pure form ha
s been synthesized from lactam 1 via the bromo derivative 2i. t-Butyl
acetate and 5-methylpyridine derivatives 2g and 2h were obtained optic
ally pure by direct alkylation of 1 with corresponding halides. Azido,
amino or benzyloxy products were obtained by diastereoselective subst
itution of 2i. Copyright (C) 1996 Elsevier Science Ltd