TANDEM CYCLIZATION OF ENYNYL AND DIYNYL ALKYLLITHIUMS

被引：7

作者：

BAILEY, WF ^{[1
]}

OVASKA, TV ^{[1
]}

机构：

[1] CONNECTICUT COLL, DEPT CHEM, NEW LONDON, CT 06320 USA

来源：

CHEMISTRY LETTERS | 1993年 / 05期

关键词：

D O I：

10.1246/cl.1993.819

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Undec-10-en-5-ynyllithium, generated from the corresponding iodide by low-temperature lithium - iodine exchange, undergoes two sequential 5-exo cyclizations when warmed to room temperature to afford 2-methyl-1-cyclopentylidenecyclopentane in 85% yield. Attempted tandem cyclization of an analogous diacetylenic alkyllithium was less successful.

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页码：819 / 820

页数：2

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