A Novel, Regioselective One-Pot Synthesis of 3-Aryl-2-chloroimidazo[1,2-<i>a</i>]pyridines and -pyrimidines
作者:Benito Alcaide、Gema Domínguez、Joaquín Plumet、Miguel A. Sierra、Angeles Monge、Virginia Pérez-Garcia
DOI:10.1055/s-1990-26913
日期:——
Derivatives of 3-aryl-2-chloroimidazo[1,2-a]pyridines and -pyrimidines 2 are prepared in high yields from 2-[(2-aryl-1-hydroxy-2-oxoethyl)amino]pyridines and -pyrimidines 1 by reaction with thionyl chloride, followed by saturated sodium carbonate workup.
以 2-[(2-芳基-1-羟基-2-氧代乙基)氨基]吡啶和嘧啶 1 为原料,通过与亚硫酰氯反应,然后用饱和碳酸钠固相法,高产率地制备出 3-芳基-2-氯咪唑并[1,2-a]吡啶和嘧啶 2 的衍生物。