Synthesis of Functionalized Pyrrolidines by a Highly Stereoselective [3+2]-Annulation Reaction of <i>N</i>-Tosyl-α-Amino Aldehydes and 1,3-Bis(silyl)propenes
作者:Peter Somfai、Per Restorp、Martina Dressel
DOI:10.1055/s-2007-966046
日期:——
An efficient protocol for stereoselective construction of densely functionalized pyrrolidines by a [3+2]-annulation reaction of N-tosyl-alpha-amino aldehydes and 1,3-bis(silyl)propenes is described. This methodology is also applied as a key step in the synthesis of the polyhydroxylated pyrrolidine alkaloid 2,5-dideoxy-2,5-imino-D-glucitol (DGDP)
描述了一种通过 N-tosyl-α-氨基醛和 1,3-bis(silyl)propenes 的 [3+2]-annulation 反应立体选择性构建密集功能化吡咯烷的有效方案。该方法也被用作合成多羟基吡咯烷生物碱 2,5-dideoxy-2,5-imino-D-glucitol (DGDP) 的关键步骤