supported by the Natural Science Foundation of China(No.20272047,20572086);the Gansu Natural Science Foundation of China(No.0308RJZA-100);Key Laboratory of Eco-Environment-Related Polymer Material(Northwest Normal University),Ministry of the Education of China
Polyethylene glycol(PEG) was found to be an effective catalyst for the condensation of 1,2-diamines with 1,2-dicarbonyl compounds to afford the corresponding quinoxaline derivatives in excellent yields under mild reac...
the Natural Science Foundation of China(No.20272047,20572086);the Natural Science Foundation of Gansu Province(No.3ZS051-A25-001);Key Laboratory of Eco-Environment-Related Polymer Material(Northwest Normal University),Ministry of Education of China.
Fifteen dihydropyrimidinthiones have been synthesized by microwave-assisted Biginelli reactions without any solvent or catalyst. The advantages of this novel protocol include the excellent yield, operational simplicit...
We thank the National Natural Science Foundation of China(NO.20272047);the Northwest Normal University Science and Technology Development Foundation of China for financial support.
An rapid and efficient synthesis of 2, 4, 6-triarylpyridines is reported using substituted benzaldehydes, substituted acetophenones and ammonia as starting materials under microwave irradiation in the presence of PEG-...