Enantioselective Organocatalysis of Strecker and Mannich Reactions Based on Carbohydrates
作者:Christian Becker、Christine Hoben、Horst Kunz
DOI:10.1002/adsc.200600370
日期:2007.2.5
Efficient organocatalysts for enantioselective Strecker and Mannichreactions were constructed from glucosamine as a readily accessible chiral scaffold. A variety of aromatic aldimines were subjected to hydrocyanation with good to excellent yield (72–98 %) and, in part, high enantioselectivity (69–95 % ee). Influence of the catalyst architecture on the enantioselectivity obviously arises from restrictions
A New Chiral Catalyst for the Enantioselective Strecker Synthesis of α-Amino Acids
作者:Jinkun Huang、E. J. Corey
DOI:10.1021/ol047698w
日期:2004.12.1
The chiral ammonium salt 3 is demonstrated to be an effective catalyst for the highly enantioselective Strecker reaction of N-allylbenzaldimines with hydrogen cyanide in CH2Cl2 solution.
Enantioselective Addition of Hydrogen Cyanide to Imines Catalyzed by a Chiral (Salen)Al(III) Complex
作者:Matthew S. Sigman、Eric N. Jacobsen
DOI:10.1021/ja980299+
日期:1998.6.1
A General Catalyst for the Asymmetric Strecker Reaction