Preparation of 1,3-bis(allyloxy)benzene under a new multi-site phase-transfer catalyst combined with ultrasonication - A kinetic study

作者：Selvaraj Varathan; Rajendran Venugopal^*

来源：Ultrasonics Sonochemistry, 2013, 20(5): 1236-1244.

DOI：10.1016/j.ultsonch.2013.02.011

• Sonocatalysis
• O-allylation
• Interfacial reaction
• Kinetics
• MPTC
• Allyl bromide

In the present work, kinetics of synthesis of 1,3-bis(allyloxy)benzene was successfully carried out by O-allylation of resorcinol with allyl bromide using aqueous potassium hydroxide and catalyzed by a new multi-site phase-transfer catalyst viz., 1,3,5,7-tetrabenzylhexamethylenetetraammonium tetrachloride, MPTC 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, 300W) in a batch reactor, it shows that the overall reaction rate can be greatly enhanced to seven fold faster with ultrasound irradiation than without ultrasound. The present study provides a method to synthesize ethers by ultrasound assisted liquid-liquid phase-transfer catalysis condition.

• 出版日期2013-9