Liquid phase fluorination process
AssigneeHooker Chemicals & Plastics Corporation
InventorsJames J. Maul, Victor A. Pattison
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Abstract
A process for the preparation of compounds of the formula R.sub.n Ar(CF.sub.w' X.sub.p').sub.Z comprises contacting compounds of the formula R.sub.n Ar(CF.sub.w X.sub.p).sub.Z in the liquid phase, with hydrogen fluoride in the presence of fluosulfonic acid wherein Ar is aryl R is a substituent on the aryl nucleus selected from the group consisting of aryl, substituted aryl, halogen, alkyl, alkoxy, and substituted alkyl; N is 0 to 9; X is halogen atom other than fluorine; W is 0 to 2; P is 1 to 3; W' is 1 to 3, and is greater than w; P' is 0 to 2, and is less than p; W + p is 3; W' + p' is 3; Z is 1-10; and The maximum value of n + Z is 10.
Claims30
A process for the preparation of fluorinated aromatic compounds of the formula
- R.sub.n AR(CF.sub.w' X.sub.p').sub.Z
- comprises contacting at least one haloalkyl aromatic compound of the formula
- R.sub.n AR(CF.sub.w X.sub.p).sub.Z
- in the liquid phase, with hydrogen fluoride in the presence of a catalyst acid system comprising fluosulfonic acid wherein
- Ar is aryl
- R is a substituent on the aryl nucleus selected from the group consisting of aryl, substituted aryl, halogen, alkyl, alkoxy, and substituted alkyl;
- n is 0 to 9;
- X is halogen atom other than fluorine;
- w is 0 to 2;
- p is 1 to 3;
- w' is 1 to 3, and is greater than w;
- p' is 0 to 2, and is less than p;
- w + p is 3;
- w' + p' is 3;
- Z is 1-10;
- and
- the maximum value of n + Z is 10.
Dependencies are inferred from the claim text.