FORMATION OF ORGANODILITHIUM COMPOUNDS VIA LITHIUM-TIN EXCHANGE

被引：38

作者：

ASHE, AJ ^{[1
]}

LOHR, LL ^{[1
]}

ALTAWEEL, SM ^{[1
]}

机构：

[1] MUTAH UNIV,DEPT NAT SCI,MUTAH AL KARAK,JORDAN

来源：

ORGANOMETALLICS | 1991年 / 10卷 / 07期

关键词：

D O I：

10.1021/om00053a054

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of methyllithium in THF with 2,5-bis(trimethylstannyl)-1,5-hexadiene (6) affords 2,5-dilithio-1,5-hexadiene (2) via the intermediacy of lithium stannates. The similar reaction of (2Z,4Z)-2,5-bis(trimethylstannyl)-2,4-hexadiene (11) affords (2E,4E)-2,5-dilithio-2,4-hexadiene (3). The more favorable formation of 3 suggests a greater relative stability over 2. Ab initio calculations indicate that the symmetrical dilithium-bridged structure found for 3 is more favorable than the unsymmetrical dilithium-bridged structure found for 2.

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页码：2424 / 2431

页数：8

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