III International Conference

PP-II-156COPPER COMPLEXED CATALYSTS IN HARMFUL INSECTS PHEROMONESSYNTHESISZhaksibayev M.Zh., Zharmagambetova A.K., Zamanbekova A.T., Pak A.M.D.V. Sokolsky Institute of Organic Catalysis and Electrochemisrty MS&HE RK,Almaty, Republic of KazakhstanE-mail: alima@nursat.kzStereoselective 9-hexadecyne-1-ol hydrogenation over γ-Al 2 O 3 supported coppercatalysts modified with polyvinylpyridine and europium and yttrium oxides have beenstudied. All modified catalysts at hydrogen pressure of 8 MPa and temperature 393-413 K aswell as 10 MPa and 393 K present 100% yield of cis-9-hexadecene-1-ol which is used as acomponent of pest insect pheromones.Unlimited use of herbicides and pesticides for plants protection leads to water and soilcontamination, destroys some important types of insects. Biological methods of plantprotection are the most progressive and environmentally friendly. One of them is based on useof synthetic pheromones of harmful insects. This methods action is highly specific.Prediction of harmful insects development is made and the precise time for preventivedisposal of chemicals is defined due to use of synthetic pheromones, and thus, the amount ofinsecticides used decreases. In both cases state of environment becomes better.In the present paper stereoselective 9-hexadecyne-1-ol hydrogenation over coppercomplexed catalysts immobilized on support () through functionalized polymer ligands(polyvinilpyridine – PVP) is studied. Influence of modifiers – europium and yttrium oxides –on activity, selectivity and stereoselectivity of catalysts was examined. Catalysts were tested(analyzed) by methods of RPE, BET, electronic microscopy. Fixing of copper complexes onsupport was proven by IR-spectroscopy and electronic microscopy. The surface area of 10%Cu-PVP/γ-Al 2 O 3 is 77m 2 /g, surface area after modification by yttrium oxide (1% Y) is74m 2 /g, by europium oxide (5% Eu) – 94 m 2 /g. By means of RPA the presence of metalliccopper without supplementary atoms in its crystalline structure was shown. Presence ofcarbon formed during thermal treatment of the sample leads to of surface.When polymer is added Cu(II) interacts with PVP and its particles are disperseduniformly over the surface. Polymer chains prevent agglomeration of copper particles onsupport surface. According to electronic microscopy size of copper particles is 60Ǻ. Copper isdispersed precisely along PVP chains.452