Room temperature ionic liquids promoted three-component coupling reactions: a facile synthesis of cis-isoquinolonic acids
作者:J.S Yadav、B.V.S Reddy、K Saritha Raj、A.R Prasad
DOI:10.1016/s0040-4020(03)00076-0
日期:2003.3
Roomtemperature ionic liquids are found to catalyze efficiently the three component-coupling reactions of aldehydes, amines and homophthalic anhydride under mild and convenient conditions to afford the corresponding cis-isoquinolonic acids in excellent yields with high cis-selectivity.
One-Pot Synthesis ofcis-Isoquinolonic Acid Derivativesvia Three-Component Reaction of Homophthalic Anhydride with Aldehydes and Amines using Ytterbium(III) Triflate as Catalyst
作者:Limin Wang、Jijun Liu、He Tian、Changtao Qian、Jie Sun
DOI:10.1002/adsc.200404211
日期:2005.4
Ytterbium(III) triflate efficiently catalyzes the one-pot reaction of homophthalic anhydride with aldehydes and amines at ambient temperature to afford the corresponding cis-isoquinolonic acid derivatives in good to excellent yields with high diastereoselectivity. This method provides a novel and much improved modification of the three-component reaction in terms of mild reaction conditions, short