Preparation of Phenanthrenes by Photocyclization of Stilbenes Containing a Tosyl Group on the Central Double Bond. A Versatile Approach to the Synthesis of Phenanthrenes and Phenanthrenoids
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- 作者：Ana G. Neo ; Carmen Lpez ; Victor Romero ; Berta Antelo ; Jos Delamano ; Antonio Prez ; Dolores Fernndez ; Jess F. Almeida ; Luis Castedo ; Gabriel Tojo
- 刊名：Journal of Organic Chemistry
- 出版年：2010
- 出版时间：October 15, 2010
- 年：2010
- 卷：75
- 期：20
- 页码：6764-6770
- 全文大小：998K
- 年卷期：v.75,no.20(October 15, 2010)
- ISSN：1520-6904
文摘
We have developed a useful modification of the classical preparation of phenanthrenes by UV irradiation of stilbenes in the presence of an oxidant. This modification involves the irradiation, in the presence of base, of stilbenes possessing a sulfonyl group linked to the central double bond. We have proved that this protocol can be successfully applied for the synthesis of diverse phenanthrenes and phenanthrenoids.