The Use of Samarium Enolates, A Novel Alternative in the Addition Reactions to Imines. Synthesis of 3-Amino Esters, Amides and Enantiopure 3,4-Diamino Esters
作者:José M. Concellón、Humberto Rodríguez-Solla、Carmen Simal
DOI:10.1002/adsc.200900189
日期:2009.6
Abstractmagnified imageAn efficient reaction of tosylimines with a range of samarium enolates (derived from esters, and amides) is reported. The reaction with the α‐dibenzylamino‐N‐tert‐butanesulfinimine derived from chiral phenylalaninal afforded the corresponding enantiopure 3,4‐diamino ester with very high diastereoselectivity.