Heterotriangulenes 蟺-Expanded at Bridging Positions

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• 作者：Chih-Ming Chou ; Shohei Saito ; Shigehiro Yamaguchi
• 刊名：Organic Letters
• 出版年：2014
• 出版时间：June 6, 2014
• 年：2014
• 卷：16
• 期：11
• 页码：2868-2871
• 全文大小：312K
• 年卷期：v.16,no.11(June 6, 2014)
• ISSN：1523-7052

文摘

A series of nitrogen-containing heterotriangulenes expanded at the bridging positions has been synthesized. Among them, a dibenzo[c,g]fluorenylidene-substituted derivative has a highly twisted conformation for the overcrowded alkene moieties, which impart a highly electron-accepting character to the electron-donating heterotriangulene skeleton and thereby an NIR absorption as well as multiredox properties with a low reduction potential.