Observations relating to the mode of formation of cyclopropylidene dimers in the reaction of gem-dibromocyclopropanes with methyllithium

被引：6

作者：

Banwell, MG ^{[1
]}

Hockless, DCR ^{[1
]}

Longmore, RW ^{[1
]}

Walter, JM ^{[1
]}

机构：

[1] UNIV MELBOURNE,SCH CHEM,PARKVILLE,VIC 3052,AUSTRALIA

来源：

AUSTRALIAN JOURNAL OF CHEMISTRY | 1997年 / 50卷 / 05期

关键词：

D O I：

10.1071/C97011

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Treatment of the gem-dibromocyclopropane (5) with methyllithium in diethyl ether at -80 degrees C gives not only the syn- and anti-cyclopropylidene dimers (12) and (13), respectively, but the related species (14) and (15) as well. The isolation of this latter pair of products lends weight to the argument that beta-halobicyclopropylyllithium compounds such as (18) are the immediate precursors to the cyclopropylidene dimers.

引用

页码：457 / 462

页数：6

共 14 条

[1]

ALEXANDER J, 1978, TETRAHEDRON LETT, P3403

[2]

ALTOMARE A, 1994, J APPL CRYSTALLOGR, V27, P351

[3]

BACKES J, 1989, HOUBENWEYL METHODE E, V19, P391

[4] STUDIES IN THE TRICYCLOOCTANE SERIES .I. DEHYDROHALOGENATION OF SOME BIS-HALOGENOCARBENE ADDUCTS OF CYCLOHEXADIENES [J].