A one-pot synthesis of imidazo[1,5-a]pyridines starting from a carboxylic acid and 2-methylaminopyridines allowing introduction of various substituents at the 1- and 3-positions is achieved using propane phosphoric acid anhydride in ethyl or n-butyl acetate at reflux.
使用丙烷磷酸酐在乙基或正丁基中的一锅合成方法,是从羧酸和2-甲基氨基吡啶开始的咪唑并[1,5- a ]吡啶和2-甲基氨基吡啶,这些取代基允许在1-和3-位引入各种取代基。回流乙酸盐。