Stereoselective 1,3-dipolar cycloadditions of nitrones derived from amino acids. Asymmetric synthesis of N-(alkoxycarbonylmethyl)-3-hydroxypyrrolidin-2-ones
Diastereoselective asymmetric 1,3-dipolar cycloadditions of N-(alkoxycarbonylmethyl) nitrones derivedfrom glycine, alanine and phenylalanine have been studied both experimentally and theoretically. Asymmetric induction is evaluated by either introducing a chiral group at the nitrone nitrogen atom or by using Oppolzer's sultam acrylamide. In both cases the sense of the asymmetric induction is the same
Asymmetric synthesis of diversely substituted N-hydroxypyrrolidines using cycloadditions with chiral nitrone enolate/ylids
作者:Stephen Hanessian、Malken Bayrakdarian
DOI:10.1016/s0040-4039(01)02305-x
日期:2002.2
A stereoselective synthesis of diversely substituted N-hydroxypyrrolidines is reported, based on the cycloaddition reaction of chiral non-racemic nitrone ylids with a variety of α,β-unsaturated esters.