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The activities of a zeolite-containing catalyst and catalysts containing a noble metal in intermolecular hydrogen transfer between С hydrocarbons are compared. The zeolite-containing catalyst is ineffective in hydrogen transfer from cyclohexane to 1-hexene and in cyclohexene conversion at <400°С. Cyclohexene disproportionation at Т < 200°С takes place only over catalysts containing a noble metal. The cyclohexene conversion selectivity depends strongly on the support type. Using deuterated compounds, it has been demonstrated that intermolecular hydrogen transfer via the dehydrogenation-hydrogenation mechanism involves only the initial cyclohexene. [ABSTRACT FROM AUTHOR]