sulfinimines 1c-g derivedfromaliphaticaldehydes with TMSCN in the presence of CsF gave alpha-amino nitriles in high diastereoselectivity and yield. alpha,beta-Diamino acid derivatives were also obtained in high diastereoselectivity from the reaction of 2-aziridinesulfinimines 1h and 1i followed by ring-opening of the products with thiophenol. The presence of hydrogen at the alpha-position of the C=N double
A Facile Synthesis of Enantiopure 2-Aziridinesulfinimines and Their Highly Diastereoselective Reactions with Phosphite Anions
作者:Bin-Feng Li、Ming-Jie Zhang、Xue-Long Hou、Li-Xin Dai
DOI:10.1021/jo016106+
日期:2002.5.1
Two novel enantiopure 1-benzyl-2-aziridinesulfinimines bearing a chiral group on both sides of the carbon-nitrogen double bond were synthesized from the condensation of racemic 1-benzyl-2-aziridinecarboxaldehyde and enantiopure p-toluenesulfinamide. The addition reaction with phosphite anion followed by the ring-opening reaction with thiophenol provided chiral alpha,beta-diamino-phosphonic acid derivatives