ИСТИНА

Design and synthesis of novel heterogeneous catalytic systems based on immobilized on the surface of the mineral carrier the transition metal complexes with ionic liquids has conducted. They showed high efficiency in the processes of radical halogenation of alkanes with polyhalogenmethanes. Fair activity in the radical-chain interaction of CCl4 with alkanes of the mononuclear copper complexes containing catalysts has been established [1]. The efficiency of the analogous catalytic systems has been shown in the bromination of hydrocarbons in the case of the reaction of tetrabromomethane with decane at relatively mild condition – 130-140C. Bromodecanes are produced with high yield in the both cases of applying as catalyst the copper (I) bromide complex or the copper (II) chloride complex with grafted on the silica gel either imidazolium or tetraalkylammonium halogenide with the similar gegenion. The addition of donor additive (alcohol, preferable n-PrOH) to the catalytic reaction leads to substantial positive yield effect. At that the formation of the products is described by the extremal dependences on the temperature and the concentration of the alcohol. The study of bromine-containing catalyst by MALDI method showed that on the surface of the carrier are each a mononuclear catalytic form and polynuclear copper clusters. Both catalytic forms display similar high activity in the bromination reaction.