Solvent-free synthesis of 5-methyl-7-aryl-4,7-dihydrotetrazolo[1,5-<i>a</i>]pyrimidine-6-carboxylic esters catalyzed by sulfamic acid
作者:Changsheng Yao、Song Lei、Cuihua Wang、Chenxia Yu、Shujiang Tu
DOI:10.1002/jhet.5570450609
日期:2008.11
The solvent-freesynthesis of 5-methyl-7-aryl-4,7-dihydrotetrazolo[1,5-a]pyrimidine-6-carboxylicesters was performed and effectively catalyzed by sulfamicacid. Compared with conventional methods, this protocol features mild reaction conditions and high yields. Furthermore, it is solvent-free and thus eco-friendly.
进行了无溶剂的5-甲基-7-芳基-4,7-二氢四唑并[1,5 - a ]嘧啶-6-羧酸酯的合成,并被氨基磺酸有效地催化。与常规方法相比,该方案具有温和的反应条件和高收率。此外,它不含溶剂,因此对环境无害。