Efficient transformation of CO2 into quinazoline-2,4(1H,3H)-diones at room temperature catalyzed by a ZnI2/NEt3 system

摘要

The readily available ZnI2/NEt3 system was used firstly to catalyze the transformation of CO2 and 2-aminobenzonitriles into quinazoline-2,4(1H,3H)-diones at room temperature and low CO2 pressure in high yields. Further experiments indicated that this ZnI2/NEt3 system has excellent effects on activating both amino and cyano groups.