Synthesis of Fluorenones through Rhodium-Catalyzed Intramolecular Acylation of Biarylcarboxylic Acids

Takahide Fukuyama*, Shinji Maetani, Kazusa Miyagawa and Ilhyong Ryu*

*Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan, Email: fukuyamac.s.osakafu-u.ac.jp, ryuc.s.osakafu-u.ac.jp

T. Fukuyama, S. Maetani, K. Miyagawa, I. Ryu, Org. Lett., 2014, 16, 3216-3217.

DOI: 10.1021/ol5012407

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Abstract

A rhodium-catalyzed intramolecular acylation of biarylcarboxylic acids enables an efficient approach to the synthesis of fluorenones. Using this procedure, fluorenones with various substituents can be synthesized in very good yields.

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Key Words

fluorenones

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ID: J54-Y2014