N-Substituted benzoxazolyl ureas and thioureas in Biginelli reaction promoted by trifluoro

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

【期刊名称】《《中国化学快报（英文版）》》 【年(卷),期】2009(020)008

【摘要】An efficient synthesis of 3,4-dihydropyrimidine 2 (1H)-ones and thiones (3,4-DHPMs) core was prepared by one-pot three-component Biginelli condensation and which was catalyzed by trifluoromethane sulfonic acid. The classical Bignelli reaction has been extended by the use

of

N-substituted

benzoxazolyl

semicarbazides

and

thiosemicarbazides and this method has the advantage of excellent yields and short reaction times. 【总页数】4页(909-912) 【关键词】

【作者】M. Saranga Pani; M. Arjun; D. Sridhar; K. Srinivas; T. Raviprasad 【作者单位】Department of Pharmacy Kakatiya University Warangal 506009 (A.P.) India; Department of Chemistry Kakatiya University Warangal 506009 A.P. India 【正文语种】中文

【中图分类】O6 【相关文献】

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