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A Rapid and Efficient Biginelli Reaction Catalyzed by Zinc Triflate

✍ Scribed by Xu Hui; Wang Yan-Guang

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
426 KB
Volume
21
Category
Article
ISSN
0256-7660

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✦ Synopsis

Abstract

An efficient and practical procedure for the synthesis of dihydropyrimidinones from aldehydes, 1,3‐dicarbonyl compounds and urea under solvent‐free reaction condition using zinc triflate as a catalyst is described. In comparison with the classical Biginelli reaction, the yields for this new procedure increased from 20%—50% to 75%— 98% while the reaction time was significantly shortened from 18 h to 20 min.

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