PROCESS FOR PRODUCING SUBSTITUTED ANILINE DERIVATIVES

1. A process for the preparation of a substituted aniline of the formula see diagramm : EP0029123,P10,F1 where 1 or 2 CH groups in the aromatic ring which is free from amino groups can be replaced by nitrogen atoms, R**1, R**2 and R**3 may be identical or different and each is hydrogen, halogen, nit...

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Hauptverfasser: HAMPRECHT,GERHARD,DE, PARG,ADOLF,DE, OESER,HEINZ-GUENTER,DE
Format: Patent
Sprache:eng
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Zusammenfassung:1. A process for the preparation of a substituted aniline of the formula see diagramm : EP0029123,P10,F1 where 1 or 2 CH groups in the aromatic ring which is free from amino groups can be replaced by nitrogen atoms, R**1, R**2 and R**3 may be identical or different and each is hydrogen, halogen, nitro, cyano, trihalomethyl, C1-4 -alkoxy, C1-4 -alkymercapto, an aliphatic radical of 1 to 4 carbon atoms an aliphatic sulfonyl radical of 1 to 4 carbon atoms, an aliphatic sulfoxide radical of 1 to 4 carbon atoms or a carbalkoxy radical of 2 to 5 carbon atoms, and Q is oxygen or sulfur, by reacting a phenolic salt with an aromatic or heterocyclic halogen compound, wherein a compound of the formula see diagramm : EP0029123,P10,F2 where Q has the above meanings and Z is a metal cation, is reacted with a haloaromatic or halo-heterocyclic compound of the formula see diagramm : EP0029123,P10,F3 where X is halogen, R**1, R**2 and R**3 have the above meanings and 1 or 2 CH groups in the ring can be replaced by nitrogen atoms, in the presence of a crown ether as catalyst and of a polar aprotic solvent, at from 80 to 280 degrees C.