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US 4,825,005 AGranted
Process for the preparation of aromatic ether and thioether compounds
AssigneeCiba-Geigy Corporation
InventorsChristian Frey, Bernd Dill
Life of this patent
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Abstract
The invention relates to a novel process for the preparation of ether and thioether compounds of formula ##STR1## by reacting compounds of formula ##STR2## with compounds of formula R.sub.1 --Y wherein R, R.sub.1, X, Y and n are as defined in claim 1, in the presence of an acid acceptor and in an aliphatic ketone, which process is carried out under pressure in the temperature range from 115.degree. to 200.degree. C.
Claims7
A process for the preparation of an aromatic ether or thioether compound of formula I ##STR8## by reacting a compound of formula ##STR9## with a compound of formula
- R.sub.1 --Y (III)
- wherein
- R is a non-interfering substituent,
- n is 0, 1 or 2,
- X is oxygen, sulfur or --SO.sub.2,
- R.sub.1 is alkyl having 1 to 6 carbon atoms which is unsubstituted or substituted by pyrrolidine, alkenyl having 1 to 6 carbon atoms, phenyl, naphthyl or anthraquinoyl and
- Y is a halogen atom,
- in the presence of an acid acceptor and in an aliphatic ketone as solvent, which process is carried out at a pressure of 0.5 to 10 bar in the temperature range from 115.degree. to 200.degree. C.
5 more elements
Dependencies are inferred from the claim text.