Cu(II)-Catalyzed 6π-Photocyclization of Dienynes

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• 作者：Ruiwen Jin ; Jinjin Chen ; Yiyong Chen ; Wangsheng Liu ; Dawen Xu ; Yawei Li ; Aishun Ding ; Hao Guo
• 刊名：Journal of Organic Chemistry
• 出版年：2016
• 出版时间：December 16, 2016
• 年：2016
• 卷：81
• 期：24
• 页码：12553-12558
• 全文大小：421K
• ISSN：1520-6904

文摘

The first 6π-photocyclization of dienynes was developed, which provides a new and effective protocol for the synthesis of the phenyl ring in excellent yields with nice functional group tolerance. In this transformation, the Cu(OTf)₂ catalyst plays a key role in the conversion of alkyne moiety into an alkene-type moiety, which means that the dienyne reactant is converted into a triene-type substrate. Thus, this reaction proceeds via a Cu(II)-catalyzed 6π-photocyclization of triene-type derivatives.