FR2360563A1 - Procede pour l'obtention d'hydrazobenzene - Google Patents

Procede pour l'obtention d'hydrazobenzene

Info

Publication number
FR2360563A1
FR2360563A1 FR7723808A FR7723808A FR2360563A1 FR 2360563 A1 FR2360563 A1 FR 2360563A1 FR 7723808 A FR7723808 A FR 7723808A FR 7723808 A FR7723808 A FR 7723808A FR 2360563 A1 FR2360563 A1 FR 2360563A1
Authority
FR
France
Prior art keywords
hydrazobenzene
obtaining
hydrogen
hydrogenation
alkaline
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7723808A
Other languages
English (en)
Other versions
FR2360563B1 (fr
Inventor
Otto Ackermann
Otto Bleh
Paul Bonsels
Ulrich Neff
Bernd-Lutz Petermann
Rudolf Stephan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19762634861 external-priority patent/DE2634861C2/de
Priority claimed from DE19762634862 external-priority patent/DE2634862C2/de
Priority claimed from DE19772708914 external-priority patent/DE2708914A1/de
Application filed by Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of FR2360563A1 publication Critical patent/FR2360563A1/fr
Application granted granted Critical
Publication of FR2360563B1 publication Critical patent/FR2360563B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C241/00—Preparation of compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
    • C07C241/02—Preparation of hydrazines
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C243/00—Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
    • C07C243/10—Hydrazines
    • C07C243/22—Hydrazines having nitrogen atoms of hydrazine groups bound to carbon atoms of six-membered aromatic rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Procédé pour l'obtention d'hydrazobenzène par hydrogénation catalytique alcaline de nitrobenzène avec de l'hydrogène en solution alcoolique. Comme agent alcalin, on utilise un alcoolate alcalin et/ou un hydroxyde alcalin, tandis que l'on effectue l'hydrogénation Sous des pressions égales ou supérieures à 1 bar et à des températures allant jusqu'à 120 degrés C, de préférence jusqu'à 90 degrés C, le mélange réactionnel étant maintenu en mouvement turbulent On pompe en 2 le liquide dans un circuit 5 qui l'amène dans une tuyère 3 au sommet du réacteur 1. L'hydrogène est introduit en 4a ou 4b.
FR7723808A 1976-08-03 1977-08-02 Procede pour l'obtention d'hydrazobenzene Granted FR2360563A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19762634861 DE2634861C2 (de) 1976-08-03 1976-08-03 Verfahren zur Herstellung von Hydrazobenzol
DE19762634862 DE2634862C2 (de) 1976-08-03 1976-08-03 Verfahren zur Herstellung von Hydrazobenzol
DE19772708914 DE2708914A1 (de) 1977-03-02 1977-03-02 Verfahren und vorrichtung zur herstellung von hydrazobenzol

Publications (2)

Publication Number Publication Date
FR2360563A1 true FR2360563A1 (fr) 1978-03-03
FR2360563B1 FR2360563B1 (fr) 1983-09-09

Family

ID=27186938

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7723808A Granted FR2360563A1 (fr) 1976-08-03 1977-08-02 Procede pour l'obtention d'hydrazobenzene

Country Status (9)

Country Link
JP (1) JPS5318522A (fr)
CH (1) CH629752A5 (fr)
CS (1) CS204007B2 (fr)
ES (2) ES461272A1 (fr)
FR (1) FR2360563A1 (fr)
GB (1) GB1560004A (fr)
HU (1) HU178508B (fr)
IT (1) IT1115946B (fr)
NL (1) NL7708542A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007972A1 (fr) * 1978-07-31 1980-02-20 Hüls Troisdorf Aktiengesellschaft Procédé de préparation de dichloro-hydrazobenzènes par hydrogénation catalytique de monochloro-nitrobenzènes

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063980A (en) * 1957-07-09 1962-11-13 Gen Aniline & Film Corp Process for reducing aromatic nitrogen compounds

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063980A (en) * 1957-07-09 1962-11-13 Gen Aniline & Film Corp Process for reducing aromatic nitrogen compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007972A1 (fr) * 1978-07-31 1980-02-20 Hüls Troisdorf Aktiengesellschaft Procédé de préparation de dichloro-hydrazobenzènes par hydrogénation catalytique de monochloro-nitrobenzènes

Also Published As

Publication number Publication date
HU178508B (en) 1982-05-28
NL7708542A (nl) 1978-02-07
IT1115946B (it) 1986-02-10
GB1560004A (en) 1980-01-30
CS204007B2 (en) 1981-03-31
FR2360563B1 (fr) 1983-09-09
ES470767A1 (es) 1979-02-01
ES461272A1 (es) 1978-10-01
JPS5318522A (en) 1978-02-20
CH629752A5 (en) 1982-05-14

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Legal Events

Date Code Title Description
ST Notification of lapse