首页> 外文期刊>Chemistry: A European journal >Acid-, Water- and High-Temperature-Stable Ruthenium Complexes for theTotal Catalytic Deoxygenation of Glycerol to Propane
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Acid-, Water- and High-Temperature-Stable Ruthenium Complexes for theTotal Catalytic Deoxygenation of Glycerol to Propane

机译:酸,水和高温稳定的钌配合物,用于甘油催化完全氧化为丙烷

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摘要

The ruthenium aqua com-plexes [Ru(H20)2(biPY)2](0T02, [cis-Ru(6,6'-C12-bipy)2(OH2)21(0T02, [Ru- (1120)2(flhen)21(0T02,[Ru- (H20)3(2,2':6',2"-terPM(OTO2and [Ru(H20)3(PhterPY)i(OTO2 (biPY=2,2'-bipyridine; OTf- =triflate; phen =phenanthroline; terpy = terpyridine;Phterpy = 4'-phenyl-2,2':6',2"-terpyri- dine) are water- and acid-stable cata-lysts for the hydrogenation of alde-hydes and ketones in sulfolane solu-tion. In the presence of HOS(0)2CF3(triflic acid) as a dehydration co-cata-lyst they directly convert 1,2-hexane- diol to n-hexanol and hexane. The ter-pyridine complexes are stable andactive as catalysts at temperatures^250°C and in either aqueous sulfo-lane solution or pure water convertglycerol into n-propanol and ultimatelypropane as the final reaction productin up to quantitative yield. For theterpy complexes the active catalyst ispostulated to be a carbonyl species [(4'-R-2,2':6',2"-terpy)Ru(C0)(H20)21-(0TH, (R=H, Ph) formed by the de-carbonylation of aldehydes (hexanalfor 1,2-hexanediol and 3-hydroxypro-panal for glycerol) generated in the re-action mixture through acid-catalyzeddehydration. The structure of the di-meric complex [{(4'-pheny1-2,2':6',2"-terpy)Ru(C0)12(11-0CH,)21(0TH2 hasbeen determined by single crystal X-ray crystallography (Space group P1 (a= 8.2532(17);b= 12.858(3);c=14.363(3) A; a = 64.38(3); /3= 77.26(3);y = 87.12(3)°, R=4.36%).
机译:钌水络合物[Ru(H20)2(biPY)2](0T02,[cis-Ru(6,6'-C12-bipy)2(OH2)21(0T02,[Ru-(1120)2( flhen)21(0T02,[Ru-(H20)3(2,2':6',2“ -terPM(OTO2和[Ru(H20)3(PhterPY)i(OTO2(biPY = 2,2'-联吡啶); OTf- =三氟甲磺酸盐; phen =邻菲咯啉; terpy =联吡啶; Phterpy = 4'-苯基-2,2':6',2“-叔吡啶)是水和酸稳定的醛氢化催化剂环丁砜溶液中的羟基和酮在存在HOS(0)2CF3(三氟甲磺酸)作为脱水助催化剂的情况下,它们将1,2-己二醇直接转化为正己醇和己烷。 -吡啶吡啶配合物在温度为250°C的温度下以及在硫磺水溶液或纯水中都稳定且具活性,可以将甘油转化为正丙醇,最终以丙烷为最终反应产物,直至定量收率。是羰基物质[(4'-R-2,2':6',2“ -terpy)Ru(C0)(H20)21-(0TH,(R = H,Ph)醛(1,2,6-己醛-己二醇和3-羟基丙醛(甘油))在反应混合物中通过酸催化脱水生成。二聚体[{(4'-pheny1-2,2':6',2“ -terpy)Ru(C0)12(11-0CH,)21(0TH2)的结构已由单晶X-射线晶体学(空间群P1(a = 8.2532(17); b = 12.858(3); c = 14.363(3)A; a = 64.38(3); / 3 = 77.26(3); y = 87.12(3) °,R = 4.36%)。

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