The Addition Reaction of Samarium Enolates and 2-Haloenolates Derived from Esters, and Amides to Imines. Totally Stereoselective Synthesis of Enantiopure 3,4-Diamino Esters or Amides
addition reaction of samarium enolates and 2-haloenolates derived from esters and amides to imines takes place in an efficient manner. A novel protocol to perform the addition reaction of samarium enolates derived from esters or amides to chiral 2-aminoimines, with total stereoselectivity and without racemization, is also reported. The use of samarium enolates in place of other classic metallic enolates
A Catalyst-free Addition Reaction of Zinc Amide Enolates to<i>N</i>-Sulfonyl Imines
作者:Seong-Ryu Joo、Pyeung-Won Im、Jong-Sung Kim、Soo-Youl Park、Seung-Hoi Kim
DOI:10.1002/bkcs.11019
日期:2016.12
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.