Asymmetric synthesis of allylic secondary alcohols: a new general approach for the preparation of α-amino acids
作者:Lorna J. Drummond、Andrew Sutherland
DOI:10.1016/j.tet.2010.05.066
日期:2010.7
A new general approach for the synthesis of opticallyactiveα-amino acids has been developed. The key steps involve a ruthenium catalysed cross-coupling reaction to give a range of α,β-unsaturated ketones, which were then reduced to allylic secondary alcohols in the presence of a chiral CBS oxazaborolidine. A thermal Overman rearrangement was used to prepare a series of allylic trichloroacetimidates