【摘要】 聚乙二醇(PEG)作为新的绿色反应介质以及作为催化剂的"流动"载体,近年来已开始引起人们的关注。本文以聚乙二醇(PEG)400-水作为反应介质,考察了水溶性铑膦络合物RhCl(CO)(TPPTS)2[TPPTS:P(m-C6H4SO3Na)3]对1-癸烯氢胺甲基化反应的催化性能。结果表明,在优化反应的条件下(4.0MPa,140℃),1-癸烯的转化率可达到84.6%,生成胺的选择性为52.5%,该催化体系对其他长链烯烃氢胺甲基化反应也具有较高的催化性能。反应完成后,含水溶性铑膦络合物的聚乙二醇-水溶液与含产物的有机相分离方便,催化剂循环使用4次后,未发现反应产率和选择性有明显变化。更多还原

【Abstract】 Polyethylene glycol(PEG)as a new green reaction media and a mobile phase supporting catalyst movably had gained significant attention in recent years.Hydroaminomethylation of 1-decene catalyzed by water-soluble rhodium complex,RhCl(CO)(TPPTS)2 [TPPTS:P(m-C6H4 SO3Na)3 ],in the presence of PEG400-water solvents was investigated.The results showed that the systems had the better catalytic activity for hydroaminomethylation of 1-decene,under relatively mild conditions(4.0MPa,140℃), the rate of conversion of 1-decene and selectivity for the amine reached 84.6% and 52.5%,respectively.The hydroaminomethylation of the other long chain alkenes had the better catalytic results in solvent system of PEG-water media.The catalyst could be easily separated from the product by phase separation and reused in the next run.No significant changes in the reaction yields and selectivities were found in the four runs.更多还原