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首页> 外文期刊>Organometallics >Synthesis and Structure of [Li2C(PPh2=NSiMe3)(PPh2=S)]: A Geminal Dianionic Ligand
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Synthesis and Structure of [Li2C(PPh2=NSiMe3)(PPh2=S)]: A Geminal Dianionic Ligand

机译:[Li2C(PPh2 = NSiMe3)(PPh2 = S)]的合成和结构:双键双阳离子配体

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摘要

The (iminophosphoranyl)(thiophosphoranyl)methane [CH2(PPh2 = NSiMe3)(PPh2 = S)] (2) was obtained by the reaction of the phosphine-phosphinimine [Ph2PCH2(PPh2 = NSi-Me-3)] (1) with sulfur in toluene. Treatment of 2 with Bu" Li in THF at - 90 degrees C afforded the lithium (iminophosphoranyl)(thiophosphoranyl)methanide [Li{CH(PPh2 = S)PPh2 = NSiMe3)}] (3) The geminal dianion derivative [Li-2{C(PPh2 = S)(PPh2 = NSiMe3)}] (4) was synthesized by double deprotonation of 2 with a stoichiometric amount of Bu' Li in Et2O at - 90 degrees C. The structures of compounds 2-4 have been determined by X-ray crystallography.
机译:通过亚膦膦胺[Ph2PCH2(PPh2 = NSi-Me-3)](1)与(亚胺基膦酰基)(硫代膦烷基)甲烷[CH2(PPh2 = NSiMe3)(PPh2 = S)](2)反应制得甲苯中的硫。在90°C下用THF中的Bu“ Li处理2,得到亚氨基锂(亚氨基磷杂烷基)(硫代磷杂烷基)甲烷[Li {CH(PPh2 = S)PPh2 = NSiMe3)}](3)双晶双阴离子衍生物[Li-2 {C(PPh2 = S)(PPh2 = NSiMe3)}](4)通过在90摄氏度下于Et2O中用化学计量的Bu'Li进行2的双质子化而合成。(4)已确定化合物2-4的结构通过X射线晶体学。

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