Unusual Transformation of Cyclobutenediones into Butenolides

Journal of the Korean Chemical Society

Harold W. Moore¹  Kwan Hee Lee¹ 

关键词: Cyclobutendiones;    Allene;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Butenolides are prepared from cyclobutenediones when cyclobutenediones are treated with lithium trimethylsilylacetylene, and quenched with water. A plausible mechanism, which contains an allene as an intermediate, is proposed. The usual diradical intermediate may not be formed because of the bulkiness of trimethylsilyl group, and the allenic intermediate may be stabilized by the ¥á-silyl group.

【 授权许可】

Unknown