Preparation, Structure, and Reactivities of Amido-Bridged Dinuclear Rhodium(III) and Rhodium(II) Complexes
作者:Hiroyuki Matsuzaka、Teruo Kamura、Ko Ariga、Yuko Watanabe、Takashi Okubo、Tomohiko Ishii、Masahiro Yamashita、Mitsuru Kondo、Susumu Kitagawa
DOI:10.1021/om990844v
日期:2000.2.1
dinuclear Rh(III) complex [Cp*Rh(μ2-NH)2C10H6-1,8}(μ2-X)RhCp*]X (3a, X = Cl; 3b, X = Br), which further converted to the Rh(II) complex Cp*Rh(μ2-NH)2C10H6-1,8}RhCp* (4) by Na/Hg reduction. Treatment of 4 with benzyl bromides produced 3b and the corresponding bibenzyl derivatives, whereas protonation of 4 with CF3CO2H afforded [Cp*Rh(μ2-NH)2C10H6-1,8}(μ2-H)RhCp*]O2CCF3 (5). Complex 2a also reacted
的[Cp * RHX(μ的反应2 -X)] 2(2A ;,X =氯2b中,X =溴)与(灵)2 Ç 10 ħ 6 -1,8-得到新颖酰氨基-桥连的双核铑(III )复杂的[Cp *的Rh (μ 2 -NH)2 ç 10 ħ 6 -1,8}(μ 2 -X)RHCP *] X(图3a,X =氯;图3b,X =溴),其进一步转化到的Rh(II)配合物的Cp *的Rh (μ 2 -NH)2 ç 10 ħ 6 -1,8-} RHCP *(4)由钠/汞减少。治疗4用苄基溴化物产生图3b和相应的联苄的衍生物,而质子化4与CF 3 CO 2 H ^得到的[Cp *的Rh (μ 2 -NH)2 Ç 10 ħ 6 -1,8}(μ 2 -H)RHCP *] O 2 CCF 3(5)。复杂的图2a还与2当量的LiNHC反应6 ħ 4 R- p到产率的[Cp *的Rh(μ 2 -NHC 6 H ^ 4 R- p)3