Article ID Journal Published Year Pages File Type
4909502 Journal of Saudi Chemical Society 2016 6 Pages PDF
Abstract

Fused ring 3,4-dihydropyrimidin-2(1H)-ones and thiones were synthesized by the one-pot three component condensation of 6-methoxy-1-tetralone, aromatic aldehydes and urea or thiourea under solvent-free conditions at 120 °C utilizing poly(4-vinylpyridinium)hydrogen sulfate as Bronsted acid catalyst. This methodology has an advantage of good yields, shorter reaction times, straight forward workup and reusability of the catalyst over five additional times without losing its activity and product yield.

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Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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