二氧化硅负载聚(丙烯腈-乙烯基三乙氧基硅烷)钯配合物的合成、加氢活性及结构表征

THE SYNTHESIS,HYDROGENATION ACTIVITY AND STRUCTURAL CHARACTERIZATION OF SILICA-SUPPORTED POLY (ACRYLONITRILE-VINYLTRIETHOXYSILICON) PdCl_2 COMPLEX

合成了二氧化硅负载聚(丙烯腈-乙烯基三乙氧基硅烷)钯配合物,用红外光谱、电子能谱和电子显微镜等对其结构进行了表征;研究了在常温常压下将醛酮的羰基催化氢化还原成亚甲基或甲基的反应,结果表明这种催化剂具有高选择性和高转化率的催化特性.

The title complex was synthesized from PdCl2 and poly(acrylonitrile-vinyltri-ethoxysilicon) supported on fumed silica. The hydrogenation reaction of carbonyl group in aldehydes and ketones into methylene or methyl group was carried out with room temperature and 1 atm H2. The high conversion of aldehydes and ketones were observed. The datum of XPS, x-ray diffraction and E. M. analysis showed that the active center may be the complex compound composed of the nitrogen of acrylonitrile ligand and Pd atom in PdCl2