SiO_2负载壳聚糖希夫碱钯催化剂对苯丙酮催化加氢的研究

Hydrogenation of propiophenone catalyzed by silica supported chitosan Schiff-base palladium catalyst

以SiO2负载的壳聚糖水杨醛希夫碱钯配合物为催化剂,在40℃的较低温度和常压氢气的温和条件下,将苯丙酮催化加氢为丙苯,实现了芳香羰基向亚甲基的还原转化。系统考察了溶剂、反应时间、反应温度和催化剂用量等因素对苯丙酮催化加氢反应的影响。结果表明,SiO2负载壳聚糖希夫碱钯催化剂具有优良的催化苯丙酮加氢为丙苯的活性和选择性。

Hydrogenation of propiophenone to phenylpropane was achieved catalyzed by a silica supported chitosan（CS）Schiff base palladium complex catalyst and under amiable conditions.The influences of the different solvent,reaction time,reaction temperature and catalyst amount on hydrogenation of propiophenone were also investigated.The results indicated that the silica supported chitosan Schiff base palladium catalyst exhibited excellent catalytic activity and selectivity for hydrogenation of propiophenone to propylbenzene at low temperature and under atmosphere of H2.