Stereoselective [2,3]-sigmatropic rearrangement of chiral amine oxides derived from amino acids
摘要:
Chiral gamma-N,N-dibenzylamino alpha,beta-unsaturated esters 1 are oxidized by m-chloro perbenzoic acid to form the amine oxides 2 which undergo a [2,3]-sigmatropic rearrangement with complete 1,3-transfer of chirality.