Asymmetric Mannich Synthesis of α-Amino Esters by Anion-Binding Catalysis
Liu, Richard Y.
Roche, Stéphane P.
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CitationWasa, Masayuki, Richard Y. Liu, Stéphane P. Roche, and Eric N. Jacobsen. 2014. “Asymmetric Mannich Synthesis of α-Amino Esters by Anion-Binding Catalysis.” Journal of the American Chemical Society 136 (37): 12872-12875. doi:10.1021/ja5075163. http://dx.doi.org/10.1021/ja5075163.
AbstractWe report a scalable, one-pot Mannich route to enantioenriched α-amino esters by direct reaction of α-chloroglycine ester as a practical imino ester surrogate. The reaction is promoted by a chiral aminothiourea, which is proposed to operate cooperatively by generating an iminium ion by chloride abstraction and an enolate by deprotonation, followed by highly stereoselective C–C bond formation between both reactive intermediates associated non-covalently within the catalyst framework.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:22856916
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