ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
The reaction of benzyl bromide with 2,4,6-tribromophenol in an organic solvent/aqueous alkaline solution of KOH to synthesize 2,4,6-tribromophenyl benzyl ether by triphase catalysis was investigated. The macroporous and microporous polymer pellets that served to support the catalyst were prepared by reacting styrene monomers, chloromethylstyrene monomers, and divinylbenzene in a suspension polymerization. Tributylamine was then immobilized on the surface of the polymer pellet to form the three-phase phase-transfer catalysts. The effects of the rate of agitation, degree of cross-linking of the polymer, solvents, inorganic salts, and temperature on the conversion of benzyl bromide and the reaction rate in the three-phase catalytic reaction were investigated in detail. We recommend that a macroporous polymer pellet with a small degree of cross-linking be used to react in a highly polar solvent to obtain high conversion of benzyl bromide and a rapid reaction. © 1994 John Wiley & Sons, Inc.
Additional Material:
15 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1994.070520511
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