CuBTC在苯甲醇需氧氧化反应中的催化性能

CuBTC(BTC:1,3,5-均苯三酸)作为一种高效、可重复利用的非均相催化剂,在催化领域有着重要的应用。论文主要研究了在Cu-TEMOP体系下,CuBTC对苯甲醇的需氧氧化反应的催化效果。研究表明,在CuBTC的催化下,多种苯甲醇衍生物被有效的氧化成相应的醛,并且该催化体系有着较高的选择性,能高效氧化伯醇。与传统的均相铜盐催化剂相比,Cu(II)能稳定的固定在CuBTC的刚性结构骨架中,并且催化活性不会降低。但是,羧酸类物质会使CuBTC催化剂中毒,所以CuBTC不适用于原料、产物或者副产物中存在羧酸的反应体系。

Aerobic Oxidation of Benzyl Alcohol by CuBTC

Cu3(BTC)2 (BTC:1,3,5-benzenetricarboxylate) as cocatalyst is an e?ective and reusable heterogeneous catalyst, exhibiting enormous potential applications in heterogeneous catalysis. The CuBTC was evaluated for aerobic oxidation of benzylic alcohols in copper and TEMPO catalyst system. The aerobic oxidation of benzylic alcohols to aldehydes was performed with CuBTC catalyst. It is important that the catalyst system has a great selectivity and displays a preference for the primary versus secondary benzylalcohol. Comparison with copper acetate as a soluble, immobilization of the Cu(II) in the rigid crystal structure of Cu3(BTC)2 does not diminish the intrinsic catalytic activity of this transition metal ion. But carboxylic acid can make catalyst poisoning, CuBTC should not be suitable catalysts in those cases where one of the reactants, products, or byproducts is a carboxylic acid.