Synthesis of fluorenones through rhodium-catalyzed intramolecular acylation of biarylcarboxylic acids
An efficient approach to the synthesis of fluorenones via the rhodium-catalyzed intramolecular acylation of biarylcarboxylic acids was developed. Using this procedure, fluorenones with various substituents can be synthesized in good to high yields. This work marks the first recorded use of catalytic intramolecular acylation to synthesize fluorenones.
Decarboxylative C-H arylation of benzoic acids under radical conditions
A decarboxylative radical cyclization reaction has been developed for the synthesis of fluorenones. The reaction uses Ag(I)/K2S 2O8 to oxidatively decarboxylate an aroylbenzoic acid to an aryl radical, which undergoes cyclization to afford fluorenone products in good yield.
Seo, Sangwon,Slater, Mark,Greaney, Michael F.
p. 2650 - 2653
(2012/07/27)
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