Reactivity of Pyridyl-1-azaallyl Germanium(II) Chloride: Synthesis of Novel Lithium Germinate [{(PhCC)3Ge}3GeLi
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- 作者：Wing-Por Leung ; Cheuk-Wai So ; Kim-Hung Chong ; Kwok-Wai Kan ; Hoi-Shan Chan ; and Thomas C. W. Mak
- 刊名：Organometallics
- 出版年：2006
- 出版时间：May 22, 2006
- 年：2006
- 卷：25
- 期：11
- 页码：2851 - 2858
- 全文大小：249K
- 年卷期：v.25,no.11(May 22, 2006)
- ISSN：1520-6041
文摘
The reaction of [Ge{N(SiMe3)C(Ph)C(SiMe3)(C5H4N-2)}Cl] (1) with LiBut or LiC
CPh in Et2Oafforded substituted products [Ge(R){N(SiMe3)C(Ph)C(SiMe3)(C5H4N-2)}] [R = But (2) or CCPh (3)],respectively. However, the one-pot reaction of 1 with PhCCH and BunLi in Et2O afforded lithiumgerminate [{(PhCC)3Ge}3GeLi(Et2O)3] (4). Compound 1 can also undergo ligand transfer reaction withLiAlH4 to give [AlH{N(SiMe3)C(Ph)C(SiMe3)(C5H4N-2)}2] (5). Treatment of 1 with excess NaBH4 inTHF afforded germanium(II) hydride-borane adduct [Ge(BH3){N(SiMe3)C(Ph)C(SiMe3)(C5H4N-2)}H](6). The reaction of 1 with MI (M = Cu and Au) gave the first examples of Ge(II)-M(I) adducts [Ge(CuI){N(SiMe3)C(Ph)C(SiMe3)(C5H4N-2)}Cl]4 (7) and [Ge(AuI){N(SiMe3)C(Ph)C(SiMe3)(C5H4N-2)}Cl] (8). Compounds 2-8 have been characterized by X-ray analysis.
CPh in Et2Oafforded substituted products [Ge(R){N(SiMe3)C(Ph)C(SiMe3)(C5H4N-2)}] [R = But (2) or CCPh (3)],respectively. However, the one-pot reaction of 1 with PhCCH and BunLi in Et2O afforded lithiumgerminate [{(PhCC)3Ge}3GeLi(Et2O)3] (4). Compound 1 can also undergo ligand transfer reaction withLiAlH4 to give [AlH{N(SiMe3)C(Ph)C(SiMe3)(C5H4N-2)}2] (5). Treatment of 1 with excess NaBH4 inTHF afforded germanium(II) hydride-borane adduct [Ge(BH3){N(SiMe3)C(Ph)C(SiMe3)(C5H4N-2)}H](6). The reaction of 1 with MI (M = Cu and Au) gave the first examples of Ge(II)-M(I) adducts [Ge(CuI){N(SiMe3)C(Ph)C(SiMe3)(C5H4N-2)}Cl]4 (7) and [Ge(AuI){N(SiMe3)C(Ph)C(SiMe3)(C5H4N-2)}Cl] (8). Compounds 2-8 have been characterized by X-ray analysis.