杯[6]芳烃-双金属卟啉仿P-450酶模型的研究Ⅳ.对异丙苯氧化的催化行为

研究了杯6]芳烃-双金属卟啉在氧化异丙苯中的催化行为，结果表明杯6]芳烃-双金属卟啉比之相应的金属卟啉具有更高的催化活性，并表现同样的选择性，生成苯乙酮和醇组份。此一结果同通常酞菁或其它如西弗碱大分子金属络合物催化下生成丙酮和酚不同。还考察了温度、轴向配体、催化剂用量及金属离子种类等对反应的影响，仔细地通过测定反应速度比较了反应的活性。

Calix[ 6] arene-bismetalloporphyrins as Enzyme Models for P-450 Ⅳ. Catalytic Performance in Oxidation of Isopropyl Benzene

The catalytic performance of calix 6 ] arene-bismetalloporphyrins in oxidation of isopropyl benzene has been studied. The results show that calix 6 ] arene-bismetalloporphyrins possess much higher catalytic activity than the corresponding metalloporphyrin while displaying the same selectivity by giving rise to acetophenone as the ketonic component in excellent yield. This result is different from the usual reactions catalyzed by metallophthalocyanine and other macromolecule such as Schiff base metal chelate, where the ketonic component is acetone. The effects of temperature, axial ligands, amounts of catalyst used, and the variety of central metal etc. on the oxidation are also studied.