Enantiodivergent synthesis of 2-hydroxymethyl-3-hydroxy-4-nitro-pyrrolidines through tandem Michael-Henry reaction using L-serine as the chiral educt
作者:Achille Barco、Simonetta Benetti、Carmela De Risi、Gian P. Pollini、Romeo Romagnoli、Vinicio Zanirato
DOI:10.1016/0040-4039(96)01671-1
日期:1996.10
By utilizing L-serine, both enantiomers of all trans 2-hydroxymethyl-3-hydroxy-4-nitro-pyrrolidine were efficiently prepared through tandem Michael-Henry methodology. Their stereochemistry has been assigned through conversion of one of them to trans 2-hydroxymethyl-3-hydroxypyrrolidine, a naturally occurring compound recently isolated from Castanospermum australe.
通过使用L-丝氨酸,通过串联Michael-Henry方法有效地制备了所有反式2-羟基甲基-3-羟基-4-硝基-吡咯烷的两种对映体。通过将其中之一转化为反式2-羟甲基-3-羟基吡咯烷,可以确定其立体化学,反式2-羟甲基-3-羟基吡咯烷是一种最近从Cast香精中分离出的天然化合物。