1,4-Bis(arylsulfonyl)dihydropyridines in synthesis. Enantioselective synthesis of 2,3,6-trisubstituted piperidines
作者:Santiago Carballares、Donald Craig
DOI:10.1016/s0022-328x(00)00918-9
日期:2001.4
A 2-substituted 1,4-bis (4-tolylsulfonyl)-1,2-dihydropyridine is readily accessed from an alpha -aminoester and 1,1-dimethoxy-3-(4-tolylsulfonyl)propane. This cyclic diene enters into highly selective addition reactions with carbon nucleophiles, and the product of one of these transformations is converted into a 2,3,6-trisubstituted piperidine via an S(N)1 ' reaction. (C) 2001 Elsevier Science B.V. All rights reserved.