Microwave-assisted three-component cyclocondensation of thiourea, ethyl acetoacetate, and substituted benzaldehydes
作者:S. D. Fazylov、A. E. Arinova、O. A. Nurkenov、A. V. Boldashevskii
DOI:10.1134/s1070363212020272
日期:2012.2
typical Biginelli reaction involving ethylacetoacetate, aldehyde, and thiourea under the standard conditions is carried out in the presence of hydrochloric or sulfuric acid, more preferred is the use of inorganic salts, the Lewis acids [1]. The main drawback is the long reaction time. We investigated the three-component condensation of thiourea, ethylacetoacetate, and p-substituted benzaldehyde derivatives