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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Phenyl substituted indenylphosphine ruthenium complexes as catalysts for dehydrogenation of alcohols
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Phenyl substituted indenylphosphine ruthenium complexes as catalysts for dehydrogenation of alcohols

机译:苯基取代的茚基膦钌配合物作为醇类脱氢的催化剂

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Thermal treatment of (1H-inden-3-yl)dicyclohexylphosphinium tetrafluoroborate (1) and (3-mesityl-1H-inden-3-yl)dicyclohexylphosphinium tetrafluoroborate (3) with tBuONa followed by [(η ~6-cymene) RuCl _2)] _2 in methanol gave the adduct {(η ~6- cymene)RuCl _2[(1H-inden-3-yl)PCy _2]} (6) and {(η ~6-cymene)RuCl _2[(3-mesityl-1H-inden-3-yl)PCy _2]} (7), respectively. Thermal treatment of (2-phenyl-1H-inden-3-yl) dicyclohexylphosphinium tetrafluoroborate (4) with tBuONa followed by [(η ~6-cymene)RuCl _2)] _2 or RuCl _3·3H _2O in methanol gave {Ru[κ(P): (η ~6-2-phenyl-1H-inden-3-yl)PCy _2]Cl _2} (8). Whereas (2-mesityl-1H-inden-3-yl)dicyclohexylphosphine (5) reacted with [(η ~6-cymene)RuCl _2)] _2 (in toluene) or RuCl _3·3H _2O (in ethanol) to afford {Ru[κ(P):(η ~6-2-mesityl-1H-inden-3-yl)PCy _2]Cl _2} (9). The molecular structures of complexes 6, 8 and 9 have been determined by single-crystal X-ray diffraction analysis. In addition, complexes 8 and 9 have been found to catalyze the acceptorless dehydrogenation of alcohols in toluene. 9 displayed high activity and different substrates, including cyclic and linear alcohols, were efficiently oxidized to ketones by using 2.0 mol% of catalyst.
机译:先用tBuONa然后用[[(η〜6-cymene)RuCl _2]热处理(1H-茚-3-基)二环己基四氟硼酸phosph(1)和(3-甲烯-1H-茚-3-基)二环己基四氟硼酸((3)。 )] _2在甲醇中得到加成物{(η〜6- cymeene)RuCl _2 [((1H-inden-3-yl)PCy _2]}}(6)和{(η〜6-cymene)RuCl _2 [(3- mesityl-1H-inden-3-yl)PCy _2]}(7)。用tBuONa然后用[(η〜6-cymene)RuCl _2)] _2或RuCl _3·3H _2O在甲醇中热处理(2-苯基-1H-茚满-3-基)二环己基phosph四氟硼酸ate(4),得到{Ru [ κ(P):(η〜6-2-苯基-1H-茚满-3-基)PCy _2] Cl _2}(8)。而(2-甲磺酰基-1H-茚满-3-基)二环己基膦(5)与[(η〜6-cymene)RuCl _2)] _2(在甲苯中)或RuCl _3·3H _2O(在乙醇中)反应得到{ Ru [κ(P):(η〜6-2-mesityl-1H-inden-3-yl)PCy _2] Cl _2}(9)。配合物6、8和9的分子结构已经通过单晶X射线衍射分析确定。另外,已经发现络合物8和9催化甲苯中醇的无受体脱氢。 9个化合物显示出高活性,并且使用2.0 mol%的催化剂将包括环状和直链醇在内的各种底物有效地氧化为酮。

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