Enantio- and diastereoselective Michael additions of C-succinimidyl esters to nitro olefins using cinchonine-derived bifunctional organocatalysts
作者:Pavol Jakubec、Dane M. Cockfield、Peter S. Hynes、Ed Cleator、Darren J. Dixon
DOI:10.1016/j.tetasy.2011.06.002
日期:2011.6
A novel bifunctional organocatalytic Michael addition of a succinimide-derived pronucleophile to nitro olefins is described. The use of a range of nitro olefins afforded Michael adducts containing contiguous quaternary and tertiary stereogenic centres in high enantioselectivities and moderate diastereoselectivities.
描述了琥珀酰亚胺衍生的亲核试剂向硝基烯烃的新型双功能有机催化迈克尔加成。一系列硝基烯烃的使用提供了迈克尔加合物,其具有高对映选择性和中等非对映选择性的连续的季和叔立体异构中心。