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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Novel pyridinium based cobalt carbonyl ionic liquids: synthesis, full characterization, crystal structure and application in catalysis
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Novel pyridinium based cobalt carbonyl ionic liquids: synthesis, full characterization, crystal structure and application in catalysis

机译：新型基于吡啶鎓的羰基钴离子液体：合成，完整表征，晶体结构及其在催化中的应用

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摘要

Through an optimized synthetic strategy, a series of novel alkylpyridinium cobalt tetracarbonyl salts, [C1Py][Co(CO)(4)] (2a), [C4Py][Co(CO)(4)] (2b) and [C16Py][ Co(CO)(4)] (2c) (CnPy = N-CnH2n+ 1-pyridinium), were successfully prepared in good yields, using a water-organic biphasic system. All the three compounds melt well below 100 degrees C and could be classified as ionic liquids. The compounds were fully characterized using IR, UV- Vis, H-1 NMR, C-13 NMR, ESI-MS and elemental analysis, and 2c was structurally characterized by X-ray single crystal analysis. Compound 2b has been found to be an efficient and reusable catalyst for the alkoxycarbonylation of propylene oxide without the aid of a base additive.
机译：通过优化的合成策略，一系列新的烷基吡啶鎓四羰基钴盐[C1Py] [Co（CO）（4）]（2a），[C4Py] [Co（CO）（4）]（2b）和[C16Py] [Co（CO）（4）]（2c）（CnPy = N-CnH2n + 1-吡啶鎓），是使用水-有机双相系统成功制备的，收率很高。这三种化合物都在低于100摄氏度的温度下融化，可以归为离子液体。使用IR，UV-Vis，H-1 NMR，C-13 NMR，ESI-MS和元素分析对化合物进行全面表征，并通过X射线单晶分析对2c进行结构表征。已经发现化合物2b是在不借助碱添加剂的情况下用于环氧丙烷的烷氧基羰基化的有效且可重复使用的催化剂。

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