title: Preparation of 1,3-bis(allyloxy)benzene under a new multi-site phase-transfer catalyst combined with ultrasonication--a kinetic study.
abstract: 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, 300 W) 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.
authors.affiliation: Sri Chandrasekharendra Saraswathi Viswa Maha Vidyalaya, Deemed University, Enathur, Kanchipuram, Tamil Nadu 631 561, India.
authors.forename: Varathan
authors.initials: V
authors.lastname: Selvaraj
authors.forename: Venugopal
authors.initials: V
authors.lastname: Rajendran
mesh_terms: D000498:Allyl Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D002384:Catalysis; D007700:Kinetics; D015394:Molecular Structure; D044367:Phase Transition; D010647:Phenyl Ethers / Q000138:chemical synthesis* / Q000737:chemistry; D013010:Sonication
chemical_list: D000498:Allyl Compounds; D010647:Phenyl Ethers