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Cholinium ionic liquids as cheap and reusable catalysts for the synthesis of coumarins via Pechmann reaction under solvent-free conditions

✍ Scribed by Zhang, Yuehua; Zhu, Anlian; Li, Qianqian; Li, Lingjun; Zhao, Yang; Wang, Jianji


Book ID
124050845
Publisher
The Royal Society of Chemistry
Year
2014
Tongue
English
Weight
275 KB
Volume
4
Category
Article
ISSN
2046-2069

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Selenonium ionic liquid as an efficient
✍ Eder J. LenardΓ£o; Elton L. Borges; Samuel R. Mendes; Gelson Perin; Raquel G. Jac πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 French βš– 95 KB

Acidic ionic liquid butyl ethyl phenyl selenonium tetrafluoroborate, [BEPSe]BF 4 , was successfully employed as a catalyst for the synthesis of several dithioacetals in the absence of a solvent. The method is general and selectively afforded thioacetals derived from aldehydes and ketones in good yie