期刊
ULTRASONICS SONOCHEMISTRY
卷 21, 期 2, 页码 612-619出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultsonch.2013.09.013
关键词
Sonocatalysis; Propargylation; Interfacial reaction; Kinetics; PTC; Propargyl bromide
资金
- University Grants Commission (UGC), New Delhi, India
In the present study, kinetics of synthesis of 2,2-di(prop-2-ynyl)-1H-indene-1,3(2H)-dione was successfully carried out by propargylation of indene-1,3-dione with propargyl bromide using aqueous potassium hydroxide and catalyzed by a newly synthesized phase-transfer catalyst viz.. N-benzyl-N-ethyl-N-isopropylpropan-2-ammonium bromide, PTC under ultrasonic (40 kHz, 300 W) assisted organic solvent condition. The pseudo first-order kinetic equation was applied to describe the overall reaction. Under ultrasound irradiation (40 kHz, 300 W) in a batch reactor, it shows that the overall reaction rate can be greatly enhanced with ultrasound irradiation than without ultrasound. (C) 2013 Elsevier B.V. All rights reserved.
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