Preparation and reactivity of a non-styrenic polymer-supported organotin chloride catalyst

Abstract

A new type of macroporous polymer-supported organotin hydride has been prepared by suspension copolymerisation of an allyl ether monomer bearing an organotin moiety with N-phenylmaleimide and 1,1′-(methylenedi-4,1-phenylene)bismaleimide. Several resins were synthesised using different ratios of toluene–N-methylformanilide as the porogen. The swelling characteristics of the resins in different solvents and their specific surface areas were estimated. The organotin chloride-functionalised beads obtained showed good activity and good stability to reduction of bromoadamantane by sodium borohydride. Tin leaching during successive reuses was estimated.