【作者】 闫新敏；

【导师】 彭延庆；

【作者基本信息】 华东理工大学 ， 制药工程与技术， 2011， 硕士

【摘要】 有机-无机杂化材料负载金属催化剂的应用是有机非均相催化研究中的热点之一本文以异烟酸作为杂化材料的有机配体,钛酸四丁酯为无机前体,其水解产物形成杂化材料的钛氧骨架,在反应过程加入MC12 (M=Cu, Pd, Mn),通过溶胶-凝胶(sol-gel)法制备出负载铜、钯、锰的基于钛-羧酸络合的有机-无机杂化材料。得到的杂化材料负载型催化剂利用TEM, IR, XRD, EDXS, BET, TGA, ICP-AES等分析手段进行了结构表征,并进一步应用于氮杂Michael加成反应、Suzuki偶联反应及Kabachnik-Fields反应中。结果表明,负载铜、钯、锰的有机-无机杂化催化剂在上述反应中表现出较高的催化活性,可以多次回收套用且催化活性基本不受影响,是一种高效、环保型的新型催化剂。更多还原

【Abstract】 The application of metal-containing organic-inorganic hybrid catalysts is one of the hot topics in heterogeneous organic catalysis. In this dissertation, three types of Ti-based organic-inorganic hybrid materials containing MCl2 (M=Cu, Pd, Mn) were prepared by simple sol-gel processes, and characterized by TEM, IR, XRD, EDXS, BET, TGA, ICP-AES and so on. In this method, isonicotinic acid was employed as organic ligand and tetrabutyl titanate was used as an organic precursor to form the inorganic frameworks through hydrolysis.The results showed hybrid materials supported copper, palladium, manganese showed highly catalytic activities in the proof-of-concept reactions such as aza-Michael addition, Suzuki coupling and Kabachnik-Fields reaction. The recovered catalysts could be reused for several times without the loss of activity. As-synthesized organic-inorganic hybrid materials were thus proved to be a new serial of efficient and environmentally friendly catalysts which might be applied in organic synthesis.更多还原