Asymmetric conjugate addition of azide to α,β-unsaturated nitro compounds catalyzed by cinchona alkaloids
作者:Martin Nielsen、Wei Zhuang、Karl Anker Jørgensen
DOI:10.1016/j.tet.2007.02.047
日期:2007.6
The cinchonaalkaloidcatalyzedasymmetricaddition of azide to α,β-unsaturated nitro compounds giving optically active β-azido nitro compounds in high yields and with low enantioselectivity is presented. Subsequent modifications allow for the formation of chiral 1,2-diamines.