Gill Duncan, Hester Alison J, Lloyd-Jones Guy C
AstraZeneca, Loughborough, Leicestershire, UK.
Org Biomol Chem. 2004 Sep 7;2(17):2547-8. doi: 10.1039/B406803C. Epub 2004 Aug 4.
In contrast to an earlier report advocating a copper-mediated trifluoromethylation of ortho-iodophenyl triflate, ortho-trifluoromethyl phenyl triflate may be prepared simply by reacting the corresponding phenol with triflic anhydride in the presence of a nucleophilic catalyst and stoichiometric base.