Novel [4 + 2] Cycloaddition between Thiobenzophenone and Aryl-Substituted Alkenes via Photoinduced Electron Transfer

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• 作者：Juan E. Argü ; ello ; Raú ; l Pé ; rez-Ruiz ; Miguel A. Miranda
• 刊名：Organic Letters
• 出版年：2007
• 出版时间：August 30, 2007
• 年：2007
• 卷：9
• 期：18
• 页码：3587 - 3590
• 全文大小：102K
• 年卷期：v.9,no.18(August 30, 2007)
• ISSN：1523-7052

文摘

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The [4 + 2] cycloaddition products between thiobenzophenone (1) and arylalkenes (2) were obtained in the presence of (thia)pyrylium salts(sensitizer = 3 or 4) as electron transfer photosensitizers. Although both radical cations 1⁺ and 2⁺ are generated, only the former is involvedin the process.