Reactions of Half-Sandwich Ethene Complexes of Rhodium(I) toward Iodoperfluorocarbons: Perfluoro-alkylation or -arylation of Coordinated Ethene versus Oxidative Addition
作者:Juan Gil-Rubio、Juan Guerrero-Leal、María Blaya、José Vicente、Delia Bautista、Peter G. Jones
DOI:10.1021/om2009588
日期:2012.2.27
respectively. Bridge splitting reactions of 1a, 1b, or 1c with phosphines afford complexes [Rh(η5-Cp*)(CH2CH2RF)I(PR3)] (3a, 3a′, 3c; RF = CF(CF3)2, R = iPr (3a″); RF = CF(CF3)CF2CF3, R = Me (3b), Ph (3b′)). In contrast, oxidative addition dominates over addition to ethene in the reactions of [Rh(η5-Cp*)(η2-C2H4)(PMe3)] with IRF (RF = CF2C6F5, nC3F7, nC4F9, CF═CF2) and in the reaction of [Rh(η5-Cp)(η2-C2H4)(PMe3)]
全氟烷基化或协调的乙烯的perfluoroarylation时发生复合物的[Rh(η 5 -Cp *)(η 2 -C 2 H ^ 4)2 ]或[铑(η 5 -Cp *)(η 2 -C 2 H ^ 4)( PR 3)]与IR反应˚F,得到复合物的[Rh(η 5 -Cp *)(CH 2 CH 2 - [R ˚F)(μ-I)] 2(R ˚F = CF(CF 3)2(1A), CF(CF 3)CF 2 CF 3(图1b),或C(CF 3)3(1C))和[(η 5 -Cp *)IRH(μ-I)2的Rh(η 5 -Cp *)(CH 2 CH 2 - [R ˚F)](2A - ç),或铑[Rh(η 5 -Cp *)(CH 2 CH 2 - [R ˚F)I(PR 3)](R =我,R ˚F = CF(CF 3)2(图3a),C(CF 3)3(3c),C 6 F 5(3d); R = Ph,RF= CF(CF