Lithium Chloride Catalyzed Aza-Michael Addition of Pyrazoles to α,β-Unsaturated Imides
作者:Hongyan Zhou、Xiancheng Xiang、Ben Ma、Ganggang Wang、Zhixia Zhang、Jingya Yang
DOI:10.1055/s-0037-1611520
日期:2019.8
practical. A lithium chloride catalyzed aza-Michael reaction of pyrazoles to α,β-unsaturated imides has been developed. A range of aromatic and aliphatic α,β-unsaturated imides are found to be suitable for the established method, providing the corresponding aza-Michael adducts in up to 93% yields. The inexpensive catalyst, good substrate tolerance, and ease of scale-up make this procedure highly practical
抽象的 已开发出氯化锂催化的吡唑的aza-Michael aza-Michael不饱和酰亚胺的aza-Michael反应。发现一定范围的芳族和脂族α,β-不饱和酰亚胺适合于已建立的方法,以高达93%的产率提供相应的氮杂-迈克尔加合物。廉价的催化剂,良好的底物耐受性和易于放大的规模使该程序非常实用。 已开发出氯化锂催化的吡唑的aza-Michael aza-Michael不饱和酰亚胺的aza-Michael反应。发现一定范围的芳族和脂族α,β-不饱和酰亚胺适合于已建立的方法,以高达93%的产率提供相应的氮杂-迈克尔加合物。廉价的催化剂,良好的底物耐受性和易于放大的规模使该程序非常实用。