Details

Autor(en) / Beteiligte

• Yu, Zhunzhun
• Ma, Ben
• Chen, Mingjin
• Wu, Hai-Hong
• Liu, Lu
• Zhang, Junliang

Titel

Highly Site-Selective Direct C–H Bond Functionalization of Phenols with α‑Aryl-α-diazoacetates and Diazooxindoles via Gold Catalysis

Ist Teil von

• Journal of the American Chemical Society, 2014-05, Vol.136 (19), p.6904-6907

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2014

Quelle

MEDLINE

Beschreibungen/Notizen

• 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.