3761.     ZELINSKIĬ, N. D., AND SHUĬKIN, N. I.  [Peculiar Conversion of Cyclohexane in the Presence of a Nickel Catalyst.]  Compt. rend. acad. sci. U.R.S.S., vol. 3, 1934, pp. 255-257 (in German, p. 258); Chem. Abs., vol. 28, 1934, . 7252.

        In the presence of a Ni catalyst precipitated on Al(OH)₃, cyclohexane (I) in H₂ atmospheric at 330°-350° undergoes a peculiar conversion with the formation of complex hydrocarbons.  Along with a dehydrogenation of (I) to C₆H₆ a deep-seated cleavage takes place with the formation of free CH₂ radicals.  These are, in part, reduced to CH₄ and in part combine with the C₆H₆ and the unaltered (I) to form toluene, xylene, methylcyclohexane, and dimethylcyclohexane.

        ZELINSKIĬ, N. D., AND VERESHCHAGIN, L. F.  [Chemical Reactions at Superhigh Pressures and High Temperatures.  II.  Reactions of Polymerization of Cyclohexene and Vinylcyclohexene.]  See abs. 3559.

        ZELINSKIĬ, N. D., EĬDUS, Y. T., PUZITSKIĬ, K. V., AND BATUEV, M. I.  [Catalytic Hydrocondensation of Carbon Monoxide With Olefins.  V.  Hydrocondensation of Carbon Monoxide and Propylene.]  See abs. 802a.

        ZELYAKOV, N. V.  See abs. 3267.