Organomagnesium Phosphanide “Grignard” Analogues − Synthesis, Structural Characterisation and Solution Behaviour of [BuMg{P(CH[SiMe
<sub>3</sub>
]
<sub>2</sub>
)(C
<sub>6</sub>
H
<sub>3</sub>
‐2‐OMe‐3R)}]
<sub>2</sub>
[R = H, Me]
作者:Stuart Blair、Keith Izod、William Clegg、Ross W. Harrington
DOI:10.1002/ejic.200300166
日期:2003.9
The reaction between either one or two equivalents of the secondary phosphane (Me3Si)2CH}PH(C6H3-2-OMe-3-R′) [R′ = H (1a), Me (1b)] and Bu2Mg yields the heteroleptic complexes [BuMgP[CH(SiMe3)2](C6H3-2-OMe-3-R′)}]2 [R′ = H (2a), Me (2b)], irrespective of the ratio of 1 to Bu2Mg. X-ray crystallography shows that 2a and 2b crystallise as dimers containing a central Mg2P2 core. Dissolution of either
一或两当量的二级磷烷 (Me3Si)2CH}PH(C6H3-2-OMe-3-R') [R' = H (1a), Me (1b)] 和 Bu2Mg 之间的反应产生杂配基络合物 [BuMgP[CH(SiMe3)2](C6H3-2-OMe-3-R')}]2 [R' = H (2a), Me (2b)],与 1 与 Bu2Mg 的比例无关. X 射线晶体学显示 2a 和 2b 结晶为包含中心 Mg2P2 核的二聚体。2a 或 2b 在 THF 中的溶解导致复杂的降解和叔膦(Me3Si)2CH}P(Me)(C6H3-2-OMe-3-R') 和不明含镁产物的形成。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)