水-有机两相体系中钌络合物催化肉桂醛选择性加氢反应研究  

Selective hydrogenation of cinnamaldehyde with water-soluble ruthenium-phosphine complex in the biphasic catalytic system

作　　者：郑宏杰[1] 李敏[1] 徐斌[1] 杨敏[1] 陈华[1] 李贤均[1] 

机构地区：[1]绿色化学与技术教育部重点实验室

出　　处：《化学研究与应用》2005年第2期183-185,共3页Chemical Research and Application

摘　　要：对RuCl3 ·XH2 O和TPPTS[P(m C6H4SO3 Na) 3 ]原位合成的水溶性钌 膦络合物在水有机两相体系中对肉桂醛的选择性加氢反应,考察了反应温度、时间、膦配体浓度、搅拌速度、底物和催化剂之比等条件对反应活性和选择性的影响。对比了单长链阳离子表面活性剂CTAB和双长链阳离子表面活性剂DCMAB(dicetyldimethy lammoniumbromide)的助催化作用,发现DCMAB的助催化作用明显优于CTAB ,在DCMAB助催化作用下,转化率98 3% ,选择性96 9%。The chemoselective hydrogenation of CAN(cinnamaldehyde)using water-soluble Ruthenium-phosphine complex formed in stiu by RuCl_3·XH_2O and TPPTS[P(m-C_6H_4SO_3Na)_3]was studied.The influences of temperature,reaction time,srirring rate,molar ratio of substrate to Ruthenium and concertration of phosphine on the catalytic activity and selectivty were investigated.The promotive effect of mono chain cationic surfactant CTAB(cetyltrimetylammonium bromide)and double chain cationic surfactant DCMAB(dicetyl dimethylammonium bromide)was compared,the results showed that DCMAB was more effective ones,the best result(conversion 98.3%,selectivity 96.9%)was obtained by using DCMAB within three hours under mild conditions.

关 键 词：肉桂醛 选择性加氢 水溶性钌-膦络合物 阳离子表面活性剂 

分 类 号：O625.41[理学—有机化学]