JPS5257128A - Process for p-phenylenediamine - Google Patents

Process for p-phenylenediamine

Info

Publication number
JPS5257128A
JPS5257128A JP50130346A JP13034675A JPS5257128A JP S5257128 A JPS5257128 A JP S5257128A JP 50130346 A JP50130346 A JP 50130346A JP 13034675 A JP13034675 A JP 13034675A JP S5257128 A JPS5257128 A JP S5257128A
Authority
JP
Japan
Prior art keywords
phenylenediamine
dinitroazobenzeno
nitrating
azobenzene
hydrogenolysis
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
JP50130346A
Other languages
Japanese (ja)
Other versions
JPS593987B2 (en
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 JP50130346A priority Critical patent/JPS593987B2/en
Priority to GB44424/76A priority patent/GB1562827A/en
Priority to DE19762649748 priority patent/DE2649748A1/en
Publication of JPS5257128A publication Critical patent/JPS5257128A/en
Priority to US05/899,866 priority patent/US4158002A/en
Publication of JPS593987B2 publication Critical patent/JPS593987B2/en
Expired 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

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

Abstract

PURPOSE: p-Phenylenediamine is prepared in high yield with two-stage process by the hydrogenolysis of 4, 4'-dinitroazobenzeno obtained by nitrating azobenzene with nitric acid, with molecular hydrogen in the presence of a catalyst.
COPYRIGHT: (C)1977,JPO&Japio
JP50130346A 1975-10-31 1975-10-31 P- Phenylenediamine Expired JPS593987B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP50130346A JPS593987B2 (en) 1975-10-31 1975-10-31 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
JP50130346A JPS593987B2 (en) 1975-10-31 1975-10-31 P- Phenylenediamine

Publications (2)

Publication Number Publication Date
JPS5257128A true JPS5257128A (en) 1977-05-11
JPS593987B2 JPS593987B2 (en) 1984-01-27

Family

ID=15032183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50130346A Expired JPS593987B2 (en) 1975-10-31 1975-10-31 P- Phenylenediamine

Country Status (1)

Country Link
JP (1) JPS593987B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0335837Y2 (en) * 1984-11-02 1991-07-30
JPS61150978U (en) * 1985-03-12 1986-09-18
JPS61166089U (en) * 1985-04-04 1986-10-15
JPS63129084U (en) * 1987-02-16 1988-08-24

Also Published As

Publication number Publication date
JPS593987B2 (en) 1984-01-27

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