Title of article
Nano-Silica phosphoric acid: an efficient catalyst for one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones (thiones) under solvent-free or sonication conditions
Author/Authors
Bamoniri, Abdolhamid university of kashan, كاشان, ايران , Mirjalili, Bi Bi Fatemeh yazd university, يزد, ايران , Nazemian, Sedigheh
From page
17
To page
21
Abstract
Two simple protocols for the synthesis of three-component condensation reaction of an aldehyde, B-ketoester and urea or thiourea to obtain the 3, 4-dihydropyrimidin-2(1H)-ones (thiones) using nano silica phosphoric acid are reported. Short reaction times, high yields, reusability of catalyst and easy workup are some advantages of these protocols.
Keywords
Biginelli reaction , Dihydropyrimidin , 2(1H) , ones , Dihydropyrimidin , 2(1H) , thiones , Heterogeneous catalyst , Multi , component reactions , Nano silica phosphoric acid , Sonication condition ,
Journal title
Iranian Journal of Catalysis
Journal title
Iranian Journal of Catalysis
Record number
2550326
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