JPS5277018A - Preparation of p-phenylenediamine - Google Patents

Preparation of p-phenylenediamine

Info

Publication number
JPS5277018A
JPS5277018A JP50153352A JP15335275A JPS5277018A JP S5277018 A JPS5277018 A JP S5277018A JP 50153352 A JP50153352 A JP 50153352A JP 15335275 A JP15335275 A JP 15335275A JP S5277018 A JPS5277018 A JP S5277018A
Authority
JP
Japan
Prior art keywords
phenylenediamine
preparation
dinitroazobenzene
aniline
hydrogenation
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.)
Pending
Application number
JP50153352A
Other languages
Japanese (ja)
Inventor
Kazutoshi Funahashi
Yoichi Saito
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.)
Teijin Ltd
Original Assignee
Teijin Ltd
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
Application filed by Teijin Ltd filed Critical Teijin Ltd
Priority to JP50153352A priority Critical patent/JPS5277018A/en
Priority to GB44424/76A priority patent/GB1562827A/en
Priority to DE19762649748 priority patent/DE2649748A1/en
Publication of JPS5277018A publication Critical patent/JPS5277018A/en
Priority to US05/899,866 priority patent/US4158002A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: p-Phenylenediamine is prepared in high yield free from the formation of aniline, etc. by the hydrogenation of 4,4'-dinitroazobenzene in the presence of iron and hydrochloric acid.
COPYRIGHT: (C)1977,JPO&Japio
JP50153352A 1975-10-31 1975-12-24 Preparation of p-phenylenediamine Pending JPS5277018A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP50153352A JPS5277018A (en) 1975-12-24 1975-12-24 Preparation of p-phenylenediamine
GB44424/76A GB1562827A (en) 1975-10-31 1976-10-26 Process for producing nitro-substituted azobenzenes
DE19762649748 DE2649748A1 (en) 1975-10-31 1976-10-29 PROCESS FOR THE PREPARATION OF POLYAMINE SUBSTITUTED BENZENE
US05/899,866 US4158002A (en) 1975-10-31 1978-04-25 Process for preparing dinitroazo- (or azoxy-)benzene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50153352A JPS5277018A (en) 1975-12-24 1975-12-24 Preparation of p-phenylenediamine

Publications (1)

Publication Number Publication Date
JPS5277018A true JPS5277018A (en) 1977-06-29

Family

ID=15560577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50153352A Pending JPS5277018A (en) 1975-10-31 1975-12-24 Preparation of p-phenylenediamine

Country Status (1)

Country Link
JP (1) JPS5277018A (en)

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