Efficient propylphosphonic anhydride (®T3P) mediated synthesis of benzothiazoles, benzoxazoles and benzimidazoles
作者:Xiaoan Wen、Jamal El Bakali、Rebecca Deprez-Poulain、Benoit Deprez
DOI:10.1016/j.tetlet.2012.03.007
日期:2012.5
Propylphosphonic anhydride (®T3P) promotes cyclization of o-aminobenzenethiol, o-aminophenol, and o-phenylenediamine with carboxylic acids under microwave irradiation. The one-pot procedure is efficient and allows short reaction times, easy workup, and good yields. Thus, we describe here a method for quick preparation of benzothiazoles, benzoxazoles and benzimidazoles.
丙基膦酸酐(®T3P)促进环化ö -aminobenzenethiol,ø氨基苯酚,和ö苯二胺与羧酸微波辐射下。一锅法效率高,反应时间短,后处理容易,产率高。因此,我们在这里描述了一种快速制备苯并噻唑,苯并恶唑和苯并咪唑的方法。