alkylation;
diastereoselectivity;
Lewis acid;
piperidines;
S(N)1;
D O I:
10.1016/S0040-4039(01)01771-3
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
1,4-B is (4-tolylsulfonyl)-1,2,3,4-tetrahydropyridines undergo stereoselective S(N)1 reactions with soft carbon nucleophiles in the presence of Lewis acids. Subsequent dihydroxylation of the double bond followed by esterification enables the stereoselective preparation of substituted piperidines. (C) 2001 Elsevier Science Ltd. All rights reserved.