Polymer-supported phase-transfer catalysts: synthesis and high catalytic activity of ammonium and phosphonium salts bound to linear and crosslinked poly(glycidyl methacrylate)

Abstract

The synthesis of polymer-supported phase-transfer catalysts is described by the polymerization of glycidyl methacrylate (PGMA), either linear or crosslinked. The PGMA polymers were hydrolysed and later modified with chloroacetyl chloride. The chloroacetylated polymers were treated with either triphenylphosphine or triethylamine to produce polymer-supported phosphonium or ammonium salts. The catalytic behavior of the prepared catalysts was tested for some nucleophilic substitution reactions such as thiocyanation, cyanation, and nitration of benzyl bromide as model reactions.