Efficient copper-catalyzed trifluoromethylation of aromatic and heteroaromatic iodides: the beneficial anchoring effect of borates

Org Lett. 2014 Aug 15;16(16):4268-71. doi: 10.1021/ol501967c. Epub 2014 Jul 28.

Abstract

Efficient copper-catalyzed trifluoromethylation of aromatic iodides was achieved with TMSCF3 in the presence of trimethylborate. The Lewis acid was used to anchor the in situ generated trifluoromethyl anion and suppress its rapid decomposition. Broad applicability of the new trifluoromethylating reaction was demonstrated in the functionalization of different aromatic and heteroaromatic iodides.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Borates / chemistry
  • Borates / pharmacology*
  • Catalysis
  • Copper / chemistry*
  • Hydrocarbons, Fluorinated / chemical synthesis*
  • Hydrocarbons, Fluorinated / chemistry*
  • Hydrocarbons, Iodinated / chemistry*
  • Methylation
  • Molecular Structure
  • Silanes / chemical synthesis*
  • Silanes / chemistry*

Substances

  • Borates
  • Hydrocarbons, Fluorinated
  • Hydrocarbons, Iodinated
  • Silanes
  • Copper
  • trimethyl(trifluoromethyl)silane