Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1255308 | Chinese Chemical Letters | 2009 | 4 Pages |
Abstract
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.
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Authors
M. Saranga Pani, M. Arjun, D. Sridhar, K. Srinivas, T. Raviprasad,