Abstract
A silica-supported sulfur and phosphine mixed bidentate palladium complex has been prepared from 4-thia-6-chlorohexyltrimethoxysilane via immobilization on fumed silica, followed by reacting with potassium diphenylphosphide in tetrahydrofuran (THF) and then the reaction with palladium chloride in acetone. This polymeric palladium complex is an efficient catalyst for Heck carbonylation of aryl halides with aniline or n-butyl alcohol under atmospheric pressure of carbon monoxide and can be recovered and reused without loss of activity.
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