A chloro-bridged (arene)Ru complex with a polymerizable side chain

被引:28
作者
Wendicke, SB [1 ]
Burri, E [1 ]
Scopelliti, R [1 ]
Severin, K [1 ]
机构
[1] Ecole Polytech Fed Lausanne, Inst Chim Mol & Biol, CH-1015 Lausanne, Switzerland
关键词
D O I
10.1021/om020813r
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
An [(arene)RuCl2](2) complex with a methacrylate side chain (2) has been prepared in two steps using commercially available starting materials. This complex reacts with PPh3, pyridine, or toluidine to give the corresponding mononuclear adducts (3-5). The structure of 4 was determined by single-crystal X-ray diffraction. Complex 2 and the PPh3 adduct 3 were immobilized by copolymerization with divinylbenzene (DVB) or ethyleneglycol dimethacrylate (EGDMA). The resulting EGDMA copolymer was tested as a catalyst in asymmetric transfer hydrogenations. Using (1R,2R)-(-)-N-p-tosyl-1,2-diphenylethylenediamine as the chiral ligand and azeotropic NEt3/HCO2H as the reducing agent, aromatic ketones were converted to the corresponding alcohols with selectivities between 87 and 97% ee.
引用
收藏
页码:1894 / 1897
页数:4
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