Organocatalytic asymmetric direct vinylogous Michael addition of α,β-unsaturated γ-butyrolactam to nitroolefins
作者:Abhijnan Ray Choudhury、Santanu Mukherjee
DOI:10.1039/c2ob25832c
日期:——
The first organocatalytic enantioselective direct vinylogous Michael reaction of α,β-unsaturated γ-butyrolactam to nitroolefins is developed using cinchona alkaloids as the catalysts. Both product enantiomers are accessible with moderate to good enantioselectivity.
以金鸡纳生物碱为催化剂,开发了α,β-不饱和γ-丁内酰胺对硝基烯烃的第一个有机催化对映选择性直接乙烯基类迈克尔反应。两种产物对映异构体均具有中等至良好的对映选择性。