Pd-catalyzed double C–H bond activation of diaryl ketones for the synthesis of fluorenones†,10.1039/C2CC34344D

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Lactoyl-CoA 全氟丁基戊烷白叶藤碱全氟己基辛烷新白叶藤碱壳寡糖特色专题-生物多肽

Pd-catalyzed double C–H bond activation of diaryl ketones for the synthesis of fluorenones†

Parthasarathy Gandeepan,Chen-Hsun Hung,Chien-Hong Cheng

Chemical Communications Pub Date : 08/02/2012 00:00:00 , DOI:10.1039/C2CC34344D

Abstract

An efficient synthesis of fluorenones from diaryl ketones by Pd-catalyzed oxidative cyclization is described. A possible mechanism involving a carbonyl group assisted ortho-C–H activation and cyclometalation followed by a second C–H activation to form a six-membered palladacycle and reductive elimination is proposed.