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Nickel–Mediated Trifluoromethylation of Phenol Derivatives by Aryl C–O Bond Activation

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [2];  [2];  [3];  [2]
  1. Chinese Academy of Sciences, Shanghai (China); Lehigh University
  2. Chinese Academy of Sciences, Shanghai (China)
  3. Lehigh Univ., Bethlehem, PA (United States)
The increasing pharmaceutical importance of trifluoromethylarenes has stimulated the development of more efficient trifluoromethylation reactions. Tremendous efforts have focused on copper– and palladium–mediated/catalyzed trifluoromethylation of aryl halides. In contrast, no general method exists for the conversion of widely available inert electrophiles, such as phenol derivatives, into the corresponding trifluoromethylated arenes. Reported herein is a practical nickel–mediated trifluoromethylation of phenol derivatives with readily available trimethyl(trifluoromethyl)silane (TMSCF3). The strategy relies on PMe3–promoted oxidative addition and transmetalation, and CCl3CN–induced reductive elimination. Here, the broad utility of this transformation has been demonstrated through the direct incorporation of trifluoromethyl into aromatic and heteroaromatic systems, including biorelevant compounds.
Research Organization:
Lehigh Univ., Bethlehem, PA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0009363
OSTI ID:
1696958
Journal Information:
Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Vol. 59; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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