顺二羰基铑(Ⅰ)共聚物催化剂的合成、结构与催化甲醇羰基化反应性能的研究

SYNTHESIS, STRUCTURE OF CIS-DICARBONYL RHODIUM(Ⅰ)COPOLYMER COMPLEXES AND THEIR CATALYTIC PROPERTY FOR METHANOL CARBONYLATION

我们曾报道一系列含有两种不同配位基团的高分子共聚物与四羰基二氯二铑形成的顺二羰基铑(Ⅰ)配合物。这些配合物在催化甲醇羰基化反应中显示出高催化活性和高稳定性。本文采用4-乙烯吡啶(Y)和丙烯酸甲酯(B)共聚物为配体,对其与四羰基二氯二铑形成的配合物(YBRh)进行了表征。对该系列配合物催化甲醇羰基化生成乙酸的性能进行了评价。

A series of 4-vinyl pyridine-methyl acrylate copolymer complexes with tetracarbonyldichlorodirhodium were prepared. Their structure characteristics and catalytic properties for methanol carbonylation to synthesize acetic acid have been studied. The macromolecular complexes containing cis-dicarbonyl rhodium in structure have a higher catalytic activity in methanol carbonylation and an excellent thermal stability. There appeared two coordination units in the copolymer complexes:The carbonylation of methanol catalyzed by the complexes can be carried out in mild conditions with-out any side-products. The selectivity of carbonylation reaction was approximately 100%.