Novel quinoline–imidazolium adducts via the reaction of 2-oxoquinoline-3-carbaldehyde and quinoline-3-carbaldehydes with 1-butyl-3-methylimidazolium chloride [BMIM][Cl]
作者:Kenneth K. Laali、Daniel Insuasty、Rodrigo Abonia、Braulio Insuasty、Scott D. Bunge
DOI:10.1016/j.tetlet.2014.05.094
日期:2014.7
A library of hydroxyquinolin-3-ylmethylimidazolium adducts were prepared in high yields from the reaction of [BMIM][Cl] with various substituted quinoline-3-carbaldehydes and 2-oxoquinoline-3-carbaldehydes under mild conditions by using sodium acetate in MeCN under ultrasound irradiation. The use of sodium acetate and imidazolium chloride was crucial for the success of these C C bond forming reactions. Attempted coupling with thiazolium bromide led instead to quinoline-3-carboxylic acid. (C) 2014 Elsevier Ltd. All rights reserved.