Rhodium-catalyzed annelation of benzoic acids with andalpha;, andbeta;-Unsaturated Ketones with Cleavage of C-H, CO-OH and C-C Bonds

Chemical Sciences Journal

ISSN: 2150-3494

Open Access

Rhodium-catalyzed annelation of benzoic acids with α, β-Unsaturated Ketones with Cleavage of C-H, CO-OH and C-C Bonds

Zhiyong Hu and Lukas J Gooben

Ruhr-Universitat Bochum, Germany

Posters & Accepted Abstracts: Chem Sci J

Abstract :

In the presence of a [Cp*RhCl2]2 catalyst, the Lewis acid In(OTf)3 and the mild base Na2CO3, aromatic carboxylates and α, β-unsaturated ketones undergo a unique hydroarylation/Claisen/retro-Claisen process to give the corresponding indanones. In this carboxylate-directed ortho-C-H annelation, the C-COR bond of the ketone and the CO-OH group of the aromatic carboxylate are cleaved, and the hydroxy group is transferred from the aromatic to the aliphatic acyl residue. This reactivity is synthetically useful, particularly when starting from cyclic ketones, which are converted into indanones bearing aliphatic carboxylate side chains, thus greatly increasing the molecular complexity of aromatic carboxylates in a single step.

Biography :

Zhiyong Hu has completed his master degree at the age of 26 years from East China University of Science and Technology in China. During his master studying, he worked at Shanghai Institute Of Organic Chemistry for two years. Now he is a PhD student in Ruhr-Universität Bochum followed by Lukas J. Gooßen as the supervisor.



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