Carbonylation of aryl halides catalyzed by a silica-supported sulfur and phosphine mixed bidentate palladium complex

The silica-supported sulfur and phosphine mixed bidentate palladium complex ('Si'-S, P-Pd(II)) 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.