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1. WO1991000261 - PROCESS FOR PREPARING 4,5-DICHLORO-2-NITROANILINE

Considered void:  25.01.1991
Publication Number WO/1991/000261
Publication Date 10.01.1991
International Application No. PCT/EP1990/001054
International Filing Date 02.07.1990
IPC
C07C 209/10 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
209Preparation of compounds containing amino groups bound to a carbon skeleton
04by substitution of functional groups by amino groups
06by substitution of halogen atoms
10with formation of amino groups bound to carbon atoms of six-membered aromatic rings or from amines having nitrogen atoms bound to carbon atoms of six-membered aromatic rings
CPC
C07C 209/10
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
209Preparation of compounds containing amino groups bound to a carbon skeleton
04by substitution of functional groups by amino groups
06by substitution of halogen atoms
10with formation of amino groups bound to carbon atoms of six-membered aromatic rings or from amines having nitrogen atoms bound to carbon atoms of six-membered aromatic rings
Applicants
  • HOECHST AKTIENGESELLSCHAFT [DE/DE]; Postfach 80 03 20 D-65296 Frankfurt am Main, DE (AllExceptUS)
  • PAPENFUHS, Theodor [DE/DE]; DE (UsOnly)
  • HESS, Reiner [DE/DE]; DE (UsOnly)
  • SCHUBERT, Hans [DE/DE]; DE (UsOnly)
Inventors
  • PAPENFUHS, Theodor; DE
  • HESS, Reiner; DE
  • SCHUBERT, Hans; DE
Common Representative
  • HOECHST AKTIENGESELLSCHAFT; Zentrale Patentabteilung Postfach 80 03 20 D-65296 Frankfurt am Main, DE
Priority Data
P 39 22 036.205.07.1989DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR HERSTELLUNG VON 4,5-DICHLOR-2-NITRO-ANILIN
(EN) PROCESS FOR PREPARING 4,5-DICHLORO-2-NITROANILINE
(FR) PROCEDE POUR LA FABRICATION DE 4,5-DICHLORO-2-NITROANILINE
Abstract
(DE)
Verfahren zur Herstellung von 4,5-Dichlor-2-nitro-anilin, indem man 2,4,5-Trichlornitrobenzol mit etwa 200 bis etwa 3000 Molprozent Ammoniak in einem gegenüber Ammoniak inerten Lösungsmittel bei Temperaturen von etwa 150°C bis etwa 220°C umsetzt.
(EN)
Process for preparing 4,5-dichloro-2-nitroaniline in which 2,4,5-trichloronitrobenzene is reacted with approximately 200 to 3000 mol per cent of ammonia in a solvent inert to ammonia, at temperatures of approximately 150 to 220°C.
(FR)
Procédé pour la fabrication de 4,5-dichloro-2-nitroaniline, dans lequel on fait réagir du 2,4,5-trichloronitrobenzène avec environ 200 à 3000 moles pour cent d'ammoniac dans un solvant inerte à l'ammoniac, à des températures d'environ 150 à environ 220°C.
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