REACTIONS OF GA2BR4.2 DIOXANE WITH (TRIMETHYLSILYL)METHYLLITHIUM AND NEOPENTYLLITHIUM - SYNTHESIS AND MOLECULAR-STRUCTURE OF LITHIUM TETRAALKYLGALLANATES(III) WITH LI-C-GA BRIDGES

被引：37

作者：

UHL, W ^{[1
]}

KLINKHAMMER, KW ^{[1
]}

LAYH, M ^{[1
]}

MASSA, W ^{[1
]}

机构：

[1] UNIV MARBURG,FACHBEREICH CHEM,W-3550 MARBURG,GERMANY

来源：

CHEMISCHE BERICHTE | 1991年 / 124卷 / 02期

关键词：

DIGALLIUM TETRABROMIDE; 2; DIOXANE; REACTION WITH ALKYLLITHIUM COMPOUNDS; LITHIUM TETRAALKYLGALLANATES; LITHIUM-CARBON-GALLIUM BRIDGE;

D O I：

10.1002/cber.19911240207

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ga2Br4 . 2 dioxane reacts with (trimethylsilyl)methyllithium or neopentyllithium to yield in n-pentane/diethyl ether solution besides elemental gallium exclusively the disproportionation product trialkylgallane. In pure n-pentane the dioxane adducts of the corresponding lithium tetraalkylgallanates (R = -CH2SiMe3 2; R = -CH2CMe3 4) are formed. 2 and 4 are also synthesized by the reaction of GaBr3 with alkyl lithium in the molar ratio 1:4. The crystal structure of 2 shows a dioxane-bridged dimer and Li-C-Ga bridges with lithium probably bound by the C-H sigma-bonds of the central carbon atoms.

引用

页码：279 / 284

页数：6

共 11 条

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