Rapid three-component synthesis of pyrimidine and pyrimidinone derivatives in the presence of Bi(NO3)3·5H2O as a mild and highly efficient catalyst
作者:Moahboobeh Zahedifar、Hassan Sheibani
DOI:10.1007/s11164-013-1172-6
日期:2015.1
and highly efficient catalyst for the rapidsynthesis of 4-amino-5-pyrimidine carbonitrile and pyrimidinone derivatives via three-component reaction of aldehydes, N-unsubstituted amidines, and malononitrile or ethyl cyanoacetate under thermal aqueous conditions. The reaction protocol is rapid and simple which is followed by formation of the corresponding pyrimidine and pyrimidinone derivatives in good
Three-Component Synthesis of Pyrimidine and Pyrimidinone Derivatives in the Presence of High-Surface-Area MgO, a Highly Effective Heterogeneous Base Catalyst
作者:Hassan Sheibani、Mohammad Seifi、Ayoob Bazgir
DOI:10.1080/00397910802474982
日期:2009.2.25
Magnesium oxide (MgO) effectively catalyzes the three-component reaction of aldehydes, amidine systems, and malononitrile or ethyl cyanoacetate to form 4-amino-5-pyrimidine carbonitrile and pyrimidinone derivatives, respectively. The salient features of this method include high conversions, short reaction times, cleaner reaction profiles, and the use of inexpensive and readily available catalyst.