Developing the Kharasch Reaction in Aqueous Media: Dinuclear Group 8 and 9 Catalysts Containing the Bridging Cage Ligand Tris(1,2‐dimethylhydrazino)diphosphane
作者:Alba E. Díaz‐Álvarez、Pascale Crochet、Maria Zablocka、Carine Duhayon、Victorio Cadierno、Jean‐Pierre Majoral
DOI:10.1002/ejic.200701132
日期:2008.2
The dinuclear complexes [RuCl2(η6-p-cymene)}2(μ-THDP)] (4) and [MCl(η4-cod)}2(μ-THDP)] [M = Rh (5), Ir (6)], containing the bridging cage-type ligand tris(1,2-dimethylhydrazino)diphosphane (THDP), have been synthesized in high yields (89–95 %) by treatment of dimers [RuCl(μ-Cl)(η6-p-cymene)}2] (1) and [M(μ-Cl)(η4-cod)}2] [M = Rh (2), Ir (3)] with one equivalent of THDP. The structure of the (η
双核配合物 [RuCl2(η6-p-cymene)}2(μ-THDP)] (4) 和 [MCl(η4-cod)}2(μ-THDP)] [M = Rh (5), Ir (6)] 含有桥笼型配体三(1,2-二甲基肼基)二膦(THDP),通过处理二聚体 [RuCl(μ-Cl)( η6-p-cymene)}2] (1) 和 [M(μ-Cl)(η4-cod)}2] [M = Rh (2), Ir (3)] 与一当量的 THDP。(η6-芳烃)钌(II)衍生物4的结构已经通过X射线衍射方法明确证实。已发现所有这些配合物都是在温和条件(室温)下,在非均相水性介质中,溴三氯甲烷与烯烃的原子转移自由基加成反应(Kharasch 反应)的活性催化剂。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 魏因海姆,德国,2008)