Synthesis of Triphenylene Derivatives by Rhodium-Catalyzed [2 + 2 + 2] Cycloaddition: Application to the Synthesis of Highly Fluorescent Triphenylene-Based Long Ladder Molecules
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- 作者：Koichi Murayama ; Yayoi Sawada ; Keiichi Noguchi ; Ken Tanaka
- 刊名：The Journal of Organic Chemistry
- 出版年：2013
- 出版时间：June 21, 2013
- 年：2013
- 卷：78
- 期：12
- 页码：6202-6210
- 全文大小：536K
- 年卷期：v.78,no.12(June 21, 2013)
- ISSN：1520-6904
文摘
The convenient synthesis of substituted triphenylenes and azatriphenylenes has been achieved by the cationic rhodium(I)/H8-BINAP or BINAP complex-catalyzed [2 + 2 + 2] cycloaddition under mild conditions. Photophysical properties of representative triphenylenes and azatriphenylenes were examined, which revealed that azatriphenylenes showed higher fluorescence quantum yields than triphenylenes. This method was successfully applied to the synthesis of highly fluorescent triphenylene-based long ladder molecules.