Interface Synthesis, Characterization and Catalytic Properties of Dialkyldichlorotin and Tetraalkyl Distannoxane Functionalities Grafted to Insoluble Polystyrene Beads by a Hexamethylene Spacer

Insoluble polystyrene‐grafted compounds of the type [(P−H) (1− t ) {P−(CH 2 ) 6 SnBuCl 2 } t ] and [(P−H) (1− t ) ({P−(CH 2 ) 6 SnBuX} 2 O) t /2 ], where (P−H) represents a cross‐linked polystyrene, X is Cl, OH or OOCCH 3 , and t is the degree of functionalization, were synthesized from Amberlite XE‐305, a polystyrene cross‐linked with divinylbenzene. The compounds were characterized by elemental analysis, IR and Raman spectroscopy, solid‐state 13 C and 117 Sn NMR spectroscopy and, where appropriate, by 119 Sn hr‐MAS NMR spectroscopy. The influence of the variable t and tin functionality on the catalytic activity of these compounds was assessed in the transesterification reaction of ethyl acetate with octanol. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)