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Solvent-free synthesis of monastrol derivatives catalyzed by NaHSO4

✍ Scribed by Qingfang Cheng; Qifa Wang; Xingyou Xu; Mingjie Ruan; Hailun Yao; Xujie Yang

Publisher
Journal of Heterocyclic Chemistry
Year
2010
Tongue
English
Weight
189 KB
Volume
47
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

magnified image Monastrol derivatives were synthesized by environment‐friendly three component condensation reaction of salicylaldehyde analogues, β‐ketoester, and urea or thiourea under solvent‐free conditions with NaHSO~4~ as catalyst in high yields. The reactions formed two different monastrol products, 4‐(2‐hydroxyphenyl)pyrimidines 4 and 9‐ methyl‐ 11‐oxo(or thioxo)‐8‐oxa‐10,12‐diazatricyclotrideca derivatives 5. J. Heterocyclic Chem., (2010).

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