Design of a Conformationally Rigid Hydrazide Organic Catalyst
作者:Mathieu Lemay、Livia Aumand、William W. Ogilvie
DOI:10.1002/adsc.200600268
日期:2007.2.5
Conformational control was utilized to design a hydrazide organocatalyst for asymmetric Diels–Alder reactions, thus introducing a new aspect to organocatalysis. Diastereoselectivities and enantioselectivities of up to 96 % were achieved by the application of the rigidified catalyst. The first crystal structure of a key iminium intermediate in an organocatalyzed process is also provided.