【摘要】 研究了含有聚乙二醇的高分子键联锰卟啉和钴卟啉的合成,并考察了它们在环己烯氧化过程中的催化性能。结果表明,金属卟啉和高分子键联后不仅增加了金属卟啉的稳定性,也是烯烃氧化反应的一种有效催化剂,且催化性能明显优于相应的简单金属卟啉,其催化性能随着金属离子的不同有所不同,其中相同条件下氯甲基化聚苯乙烯键联锰卟啉对环己烯的催化氧化转化率达到 88%,主要产物的总选择性接近于100%。但高分子链中引入自身能起相转移催化作用的聚乙二醇反而降低了高分子担载金属卟啉的催化性能。更多还原

【Abstract】 Polymer-bound metalloporphyrins with polyglycol chains were synthesized and the ir catalytic performances on the oxidation of cyclohexene were investigated. The experimental results show that the synthesized manganese(Ⅱ) and cobalt(Ⅱ) porphyrins bound to chloromethylated polystyrene with polyglycol chains are eff icient catalysts for the oxidation of cyclohexene. The conversion is 88% for the oxidation of cyclohexene catalyzed by manganese(Ⅱ) porphyrin bound to chloro- methylated polystyrene. The catalytic performances of synthesized manganese( Ⅱ) and cobalt(Ⅱ) porphyrins are better than those of simple metalloporphyrins; however, the catalytic performance of polymer-bound metalloporphyrins with pha se transfer catalyst polyglycol chains are decreased.更多还原