Highly Site-Selective Direct C–H Bond Functionalization of Phenols with α-Aryl-α-diazoacetates and Diazooxindoles via Gold Catalysis
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- 5 May 2014
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 136 (19), 6904-6907
- https://doi.org/10.1021/ja503163k
Abstract
An unprecedented direct C-H bond functionalization of unprotected phenols with α-aryl α-diazoacetates and diazooxindoles was developed. A tris(2,4-di-tert-butylphenyl) phosphite derived gold complex promoted the highly chemoselective and site-selective C-H bond functionalization of phenols and N-acylanilines with gold-carbene generated from the decomposition of diazo compounds, furnishing the corresponding products in moderate to excellent yields at rt. The salient features of this reaction include readily available starting materials, unprecedented C-H functionalization rather than X-H insertion, good substrate scope, mild conditions, high efficiency, and ease in further transformation. To the best of our knowledge, this is the first example of C-H functionalization of unprotected phenols with diazo compounds.Keywords
Funding Information
- National Natural Science Foundation of China (21372084)
- National Natural Science Foundation of China (21373088)
- Ministry of Education of the People's Republic of China (NA)
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