FeCl3∙6H2O/TMSBr-Catalyzed Rapid Synthesis of Dihydropyrimidinones and Dihydropyrimidinethiones under Microwave Irradiation
作者:Fei Zhao、Xiuwen Jia、Pinyi Li、Jingwei Zhao、Jun Huang、Honglian Li、Lin Li
DOI:10.3390/molecules22091503
日期:——
dihydropyrimidinethiones through FeCl3∙6H2O/TMSBr-catalyzed three-component cyclocondensation undermicrowaveirradiation. This approach features high yields, broad substrate scope, short reaction time, mild reaction conditions, operational simplicity and easy work-up, thus affording a versatile method for the synthesis of dihydropyrimidinones and dihydropyrimidinethiones.
Cyclic ketones and substituted α-keto acids as alternative substrates for novel Biginelli-like scaffold syntheses
作者:Matthew M Abelman、Stephen C Smith、Donald R James
DOI:10.1016/s0040-4039(03)00985-7
日期:2003.6
The reactions of benzocyclic ketones and alpha-ketoacids as carbonyl components in the Biginelli reaction were investigated. These unusual Biginelli substrates furnished novel drug-like dihydropyrimidinone scaffolds suitable for further elaboration. (C) 2003 Elsevier Science Ltd. All rights reserved.
A novel and efficient one-pot method to Biginelli-like scaffolds
作者:M. Mirza-Aghayan、A. Moradi、M. Bolourtchian
DOI:10.1007/bf03245888
日期:2010.3
A novel and efficient one-pot method for the preparation of fused ring 3,4-dihydropyrimidin-2(1H)-ones and thiones from cyclocondensation of aldehydes, cyclic ketones and urea or thiourea using a catalytic amount of cupric chloride under mild conditions reaction is described. This new method has the advantage to give high yields, to be completed in short reaction times and simple product isolation