TETRASUBSTITUTED FURANS FROM NOVEL [3+2]-PHOTOCYCLOADDITION OF CONJUGATED ACETYLENIC ALPHA-DIKETONES WITH ALKENES

被引：8

作者：

MUKHERJEE, AK ^{[1
]}

AGOSTA, WC ^{[1
]}

机构：

[1] ROCKEFELLER UNIV LABS,NEW YORK,NY 10021

来源：

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1994年 / 16期

关键词：

D O I：

10.1039/c39940001821

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Photocycloaddition of ketones 1a-c with tetramethylethylene 2 furnishes tetrasubstituted furans 3a-c in isolated yields of approximate to 85%; a suggested mechanism for formation of 3a involves [3 + 2] cycloaddition by way of an initial biradical 5 to form an intermediate carbene 6, followed by cyclization to the furan.

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页码：1821 / 1822

页数：2

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