Process for preparing fluorinated aromatics

Details Process for preparing fluorinated aromatics Process for preparing fluorinated aromatics

1996-11-07

1998-05-26

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

560103, 564183, 570127, 558425, 168437, 168937, 168938, C07C 6304

Patent

active

057568340

ABSTRACT:
It is known to prepare fluorinated aromatic compounds of the formula I ##STR1## in which X, Y and Z can have the meaning specified in the description, by reacting aromatic compounds of the formula II ##STR2## in which X, Y and Z have the meaning specified for formula I, with fluorine in a reaction medium.
According to the invention, the direct fluorination is carried out in a reaction medium containing polyfluoroalkanesulfonic acids of the formula III

REFERENCES:
F. Cacace et al., Jour. Am. Chem. Soc., vol. 102, pp. 3511-3515, 1980.
S.T. Purrington et al., Jour. Org Chem. vol. 56, 1991, pp. 142-145.
M. van der Puy, Tetrahedron Letters, vol. 28, 1987, pp. 255-258.
Chambers et al., Jour. Chem. Soc. Chem. Commun., 1995, p. 17.

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