Tetrahedranyllithium: Synthesis, characterization, and reactivity

被引：33

作者：

Sekiguchi, A ^{[1
]}

Tanaka, M ^{[1
]}

机构：

[1] Univ Tsukuba, Dept Chem, Tsukuba, Ibaraki 3058571, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2003年 / 125卷 / 42期

关键词：

D O I：

10.1021/ja030476t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The first representative of stable tetrahedranyl anion, tris(trimethylsilyl)tetrahedranyllithium (3), has been synthesized by the reaction of tetrakis(trimethylsilyl)tetrahedrane (2) with methyllithium in tetrahydrofuran. The structural characterization of the tetrahedranyllithium has been achieved by X-ray crystallography, showing that the structure of 3·(TMEDA)1.5 represents a stretched tetrahedron. The endocyclic C(Li)-C(SiMe3) bond lengths range from 1.5408(15) to 1.5441(15) Å (av 1.5425(15) Å), and are longer than the endocyclic C(SiMe3)-C(SiMe3) bond lengths, which range from 1.4961(15) to 1.5009(15) Å (av 1.4986(15) Å). Methyl- and hydrogen-substituted tetrahedranes have also been prepared by the reaction of 3 with dimethyl sulfate and cyclopentadiene, respectively. Copyright © 2003 American Chemical Society.

引用

页码：12684 / 12685

页数：2

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