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Heterogeneous Palladium-Cobalt Bimetal Catalyst for the Oxidative Carbonylation of Bisphenol A to Polycarbonate

机译:非均相钯钴双金属催化剂催化双酚A氧化羰基化为聚碳酸酯

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摘要

Polycarbonates (PCs) were prepared by the oxidative carbonylation of bisphenol A and carbon monoxide with a hydrotalcite-supported Pd-Co complex, a Pd-Co-poly(4-vinylpyridine) complex [Pd-Co-(p-4vpy)], a Pd-Co-polystyrene-supported triphenylphosphine complex (Pd-Co-PS-TPP), or a Pd-Co-polyvinylpyrrolidone complex (Pd-Co-pvp) as a heterogeneous Pd-Co bimetal catalyst to separate the PC solution and the Pd-Co bimetal catalyst after the reaction. Propylene carbonate was used as a halogen-free solvent. Pd-Co-(p-4vpy) and Pd-Co-PS-TPP showed recycling potential, whereas Pd-Co-pvp, though not having recycling potential, yielded a high turnover number with a maximum of 1462.
机译:聚碳酸酯(PCs)是通过水滑石负载的Pd-Co络合物,Pd-Co-聚(4-乙烯基吡啶)络合物[Pd-Co-(p-4vpy)]对双酚A和一氧化碳进行氧化羰基化反应制得的, Pd-Co-聚苯乙烯负载的三苯基膦配合物(Pd-Co-PS-TPP)或Pd-Co-聚乙烯吡咯烷酮配合物(Pd-Co-pvp)作为非均相Pd-Co双金属催化剂以分离PC溶液和反应后的Pd-Co双金属催化剂。碳酸亚丙酯用作无卤溶剂。 Pd-Co-(p-4vpy)和Pd-Co-PS-TPP显示出回收潜力,而Pd-Co-pvp尽管没有回收潜力,但产生了很高的周转率,最大值为1462。

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