Transfer Hydrogenation of Aryl Ketones with Half‐Sandwich Ru
<sup>II</sup>
Complexes That Contain Chelating Diamines
作者:Hayati Türkmen、İbrahim Kani、Bekir Çetinkaya
DOI:10.1002/ejic.201200638
日期:2012.10
comparative study, half-sandwich complexes of RuII (1) with pyridine-based chelating diamine [NN = 2-aminomethylpiperidine (ampi), a; 2-aminomethylpyridine (ampy), b; 8-aminoquaniline (aquan), c; 4,4′-dimethyl-2,2′-bipyridine (dbipy), d; 2,2′-bipyridine (bipy), e] or amine amide (Ts-ampi, 2a) were synthesized by cleavage of [(η6-p-cymene)Ru(μ-Cl)Cl}2] dimer and the resulting complexes were screened for their
在比较研究中,RuII (1) 与基于吡啶的螯合二胺 [NN = 2-氨基甲基哌啶 (ampi), a; 2-氨基甲基吡啶(ampy),b;8-氨基喹啉(aquan),c;4,4'-二甲基-2,2'-联吡啶(dbipy),d;2,2'-联吡啶 (bipy), e] 或胺酰胺 (Ts-ampi, 2a) 通过裂解 [(η6-p-cymene)Ru(μ-Cl)Cl}2] 二聚体和所得对苯乙酮在 2-丙醇 (IPA) 中在 82 °C 或在 HCOONa 中的水中进行转移氢化 (TH) 的效率筛选了复合物。在这些配合物中,阳离子 1a、中性 2a 和 1b 具有 ampi 和 ampy,在催化剂性能方面最有效(周转频率值分别为:198、6000、23 h-1)。