Pentakis(trifluoromethyl)benzenediazonium Cation: A Useful Building Block for the Syntheis of Trifluoromethyl-Substituted Derivatives

Chempluschem. 2013 Sep;78(9):932-936. doi: 10.1002/cplu.201300160. Epub 2013 Jul 10.

Abstract

The sterically crowded, highly electron-deficient diazonium salt C6 (CF3 )5 N2 + BF4 - has been synthesized and sample dediazotization reactions were carried out. New compounds, C6 (CF3 )5 I, C6 (CF3 )5 NO2 , and C6 (CF3 )5 NO were isolated and identified. Also, a more convenient route to C6 (CF3 )5 NH2 that gave good yield was achieved.

Keywords: CC coupling; aromatic substitution; diazo compounds; fluorine; radical reactions.