Activity of Silicon- and Tin-containing Systems

Campanella, G. de Angelis, and A. Napoli, Bull. Soc. chim. beiges, 1972, 81,489. S. K. Dhar and D. A. Stroz, Inorg. Nuclear Chem. Letters, 1972, 8, 1019. 

The isotopic exchange reaction of MeOH, containing a Pt -Sn chloride complex, with D2 in the temperature range 0— 20 °C and up to 100 Torr is first-order in deuterium. The rate exhibits a maximum at a Sn/Pt ratio of 5.5, lending support to the idea that the active catalyst is Pt (SnCl3). ii The catalytic efficiencies of 80X4 (X = Cl or Br) and PhSnClg in the racemization of a-methylbenzyl chloride in ether have been studied. For all catalysts, the reaction is first-order in alkyl halide, but a mixture of first- and second-order 

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