A new method for regioselective synthesis of 2-substituted 1-(methoxycarbonyl)-1,2-dihydropyridines
作者:Tatsuya Shono、Yoshihiro Matsumura、Osamu Onomura、Yasufu Yamada
DOI:10.1016/s0040-4039(01)83864-8
日期:1987.1
2-Substituted 1,2-dihydropyridines including an optically active one were regioselectively prepared from 2-substituted piperidines through three intermediates, that is, (a) 1,2,3,4-tetrahydropyridines, (b) 5-bromo-6-methoxypiperidines, and (c) 1,2,3,6-tetrahydro- 6-methoxypyridines.
由2-取代的哌啶通过三种中间体,即(a)1,2,3,4-四氢吡啶,(b)5-溴-6-,区域选择性地制备包括光学活性的2-取代的1,2-二氢吡啶。甲氧基哌啶,和(c)1,2,3,6-四氢-6-甲氧基吡啶。