N-Substituted benzoxazolyl ureas and thioureas in Biginelli reaction promoted by trifluoromethane sulfonic acid:An efficient and convenient synthesis of substituted benzoxazolyl 3,4-dihydropyrimidine (1<i>H</i>)-(thio)-ones

N-Substituted benzoxazolyl ureas and thioureas in Biginelli reaction promoted by trifluoromethane sulfonic acid:An efficient and convenient synthesis of substituted benzoxazolyl 3,4-dihydropyrimidine (1H)-(thio)-ones

M. Saranga Pani, M. Arjun, D. Sridhar, K. Srinivas, T. Raviprasad

N-Substituted benzoxazolyl ureas and thioureas in Biginelli reaction promoted by trifluoromethane sulfonic acid:An efficient and convenient synthesis of substituted benzoxazolyl 3,4-dihydropyrimidine (1H)-(thio)-ones

M. Saranga Pani, M. Arjun, D. Sridhar, K. Srinivas, T. Raviprasad

中国化学快报 . 2009, (08): 909 -912 . DOI: 10.1016/j.cclet.2009.04.010