A facile, efficient and novel approach to access 2-substituted 2,3-dihydro-4(1H)-azuleno[2,1-d]pyrimidinones was developed by condensation of methyl 2-amino-3-carbamoylazulene-1-carboxylate with ketones or aryl aldehydes in the 2,2,2-trifluoroethanol catalyzed by p-toluenesulfonic acid.
A Facile Synthesis of 2-Substituted 2,3-Dihydro-4(1H)-azuleno[1,2-d]pyrimidinones
作者:Dao-Lin Wang、Yuan-Feng LI、Jiao Xu、Wei Li、Shao-Fei Li、Li-Nan Lin
DOI:10.3987/com-10-12098
日期:——
A facile, efficient and novel approach to access 2-substituted 2,3-dihydro-4(1H)-azuleno[2,1-d]pyrimidinones was developed by condensation of methyl 2-amino-3-carbamoylazulene-1-carboxylate with ketones or aryl aldehydes in the 2,2,2-trifluoroethanol catalyzed by p-toluenesulfonic acid.