CAJ | 학술논문

研究了在阳离子表面活性剂存在下水/有机两相中水溶性铑配合物RhCI(CO)(TPPTS)2(TPPTS:P(m-C6H4SO3Na)3)催化双环戊二烯氢甲酰化反应,考察了反应温度、催化剂浓度、不同水溶性膦配体TPPTS和TPPDS(C5H5P(m-C6H4SO3Na)2),以及表面活性剂结构对催化反应的影响.结果表明,配体TPPTS比TPPDS表现出更好的助催化效果;阳离子表面活性剂C16H33N(CH3)2CnH2n+1Br(n=1,8,12,16)的加入可大大加速反应,但加速作用随着其中CnH2n+1Br(n=1,8,12,16)链长的增加而减弱;在阳离子表面活性剂(0.05～5.00mmol/L)存在下,双环戊二烯的转化率随表面活性剂浓度的增加先增加后降低.含催化剂的水相循环使用4次后,催化活性和区域选择性没有明显下降.
연구료재양리자표면활성제존재하수/유궤량상중수용성로배합물RhCI(CO)(TPPTS)2(TPPTS:P(m-C6H4SO3Na)3)최화쌍배무이희경갑선화반응,고찰료반응온도、최화제농도、불동수용성련배체TPPTS화TPPDS(C5H5P(m-C6H4SO3Na)2),이급표면활성제결구대최화반응적영향.결과표명,배체TPPTS비TPPDS표현출경호적조최화효과;양리자표면활성제C16H33N(CH3)2CnH2n+1Br(n=1,8,12,16)적가입가대대가속반응,단가속작용수착기중CnH2n+1Br(n=1,8,12,16)련장적증가이감약;재양리자표면활성제(0.05～5.00mmol/L)존재하,쌍배무이희적전화솔수표면활성제농도적증가선증가후강저.함최화제적수상순배사용4차후,최화활성화구역선택성몰유명현하강.
Dicyclopentadiene (DCPD) hydroformylation catalyzed by the water soluble rhodium complex RhCI(CO)(TPPTS)2 (TPPTS:P(m-C6H4SO3Na)3) was studied in an aqueous/organic two phase system containing a cationic surfactant. The effects of various reaction parameters such as reaction temperature, catalyst concentration, water soluble phosphine TPPTS or TPPDS (C6H5P(m-C6H4SO3Na)2), and surfactant structure were examined. The catalytic activity was better with the ligand TPPTS than with TPPDS. The reaction was accelerated by the addition of the cationic surfactant C16H33N(CH3)2CnH2n+1Br(n = 1, 8, 12, 16) but the accelerating effect was attenuated with an increase of the n value. In the presence of the surfactant, the DCPD conversion increased initially and then decreased as the rhodium concentration increased in the range of 0.05-5.00 mmol/L. The catalyst containing aqueous phase was reused four times without significant decrease in activity and regioselectivity.