SYNTHESIS, CRYSTAL-STRUCTURE AND REACTIONS OF THE DIMERIC ORGANOLITHIUM COMPOUND [([(MEO)ME2SI]3CLI)2]

被引：30

作者：

AIGBIRHIO, FI ^{[1
]}

BUTTRUS, NH ^{[1
]}

EABORN, C ^{[1
]}

GUPTA, SH ^{[1
]}

HITCHCOCK, PB ^{[1
]}

SMITH, JD ^{[1
]}

SULLIVAN, AC ^{[1
]}

机构：

[1] UNIV SUSSEX, SCH CHEM & MOLEC SCI, BRIGHTON BN1 9QJ, E SUSSEX, ENGLAND

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1992年 / 06期

关键词：

D O I：

10.1039/dt9920001015

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Treatment of the compound (Me3Si)3CCl with ICl followed by MeOH-Et3N gave the methoxy-derivative [(MeO)Me2Si]3CCl. This reacted with LiBu(n) at -78-degrees-C to give [(MeO)Me2Si]3CLi 3, which was used to prepare the compounds SiMe2X{C[SiMe2(OMe)]3} (X = H, Cl, OCOCF3 or NCO) and SiPh2H{C[SiMe2-(OMe)]3}. An X-ray diffraction study has shown that in the solid state the lithium compound 3 is dimeric, with the carbanionic fragments bound by two oxygen atoms to one lithium and by carbon and the third oxygen to the other. The Li-C bond [2.401(9) angstrom] is longer than usual and the C-SiMe2(OMe) bonds [mean 1.805(4) angstrom] are short.

引用

页码：1015 / 1018

页数：4

共 26 条

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