Ultrasound-assisted one-pot synthesis of substituted coumarins catalyzed by poly (4-vinylpyridinium) hydrogen sulfate as an efficient and reusable solid acid catalyst

NG Khaligh

Index: Ultrasonics Sonochemistry, , vol. 20, # 4 p. 1062 - 1068

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Citation Number: 17

Abstract

... Ultrasonics Sonochemistry. Volume 20, Issue 4, July 2013, Pages 1062–1068. ... Application of ultrasonic irradiation as the source of energy. ... Keywords. Ultrasound-assisted synthesis; Poly(4-vinylpyridine); Pechmann reaction; Solid acid; Solvent-free conditions. 1. Introduction. ...