Аннотация:Transformation of H2PtCl6 over time under the action of 2-octanol has been studied by NMR, IR spectroscopy, GLC, and GC/MS. It has been found for the first time that the alcohol in a H2PtCl6 ⋅ 6H2O–2-octanol solution is hydrochlorinated to give 2-chlorooctane. Dehydrated platinum chlorides catalyze the elimination of methyl groups in trimethylchlorosilane and hexamethyldisiloxane, which leads to the formation of polydimethylsiloxanes. It has been assumed that the resulting π-complex of H2PtCl4 with octene-1 is not stable in a hydrochloric medium and rapidly decomposes to release chloroalkyl.