Cyclic Aldimines as Superior Electrophiles for Cu-Catalyzed Decarboxylative Mannich Reaction of β-Ketoacids with a Broad Scope and High Enantioselectivity
作者:Heng-Xia Zhang、Jing Nie、Hua Cai、Jun-An Ma
DOI:10.1021/ol500929d
日期:2014.5.2
enantioselective decarboxylativeMannichreaction of cyclic aldimines with β-ketoacids is described. The cyclic structure of these aldimines, in which the C═N bond is constrained in the Z geometry, appears to be important, allowing Mannich condensation to proceed in high yields with excellent enantioselectivities. A chiral chroman-4-amine was synthesized from the decarboxylativeMannich product in several