2,5-Disubstituted pyrrolidines: synthesis by enamine reduction and subsequent regioselective and diastereoselective alkylations
作者:Syed Raziullah Hussaini、Mark G. Moloney
DOI:10.1039/b604183c
日期:——
diastereoselective synthesis of 2,5-disubstituted pyrrolidines by reduction of enamines derived from pyroglutamic acid is reported; the nature of nitrogen protection was found to be critical for the stereochemical control of the reaction outcome. Regioselective manipulation of the C-2 and C-5 substituents is possible, providing access to differently substituted pyrrolidines for a limited number of cases
报道了通过还原衍生自焦谷氨酸的烯胺来非对映选择性合成2,5-二取代的吡咯烷的方法学;发现氮保护的性质对于反应结果的立体化学控制至关重要。C-2和C-5取代基的区域选择性操纵是可能的,在有限的情况下,可以使用不同取代的吡咯烷。