JPS55326A - Preparation of phenylenediamine - Google Patents

Preparation of phenylenediamine

Info

Publication number
JPS55326A
JPS55326A JP7319578A JP7319578A JPS55326A JP S55326 A JPS55326 A JP S55326A JP 7319578 A JP7319578 A JP 7319578A JP 7319578 A JP7319578 A JP 7319578A JP S55326 A JPS55326 A JP S55326A
Authority
JP
Japan
Prior art keywords
acid diamide
halogen compound
solvent
electrolysis
phthalic acid
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
JP7319578A
Other languages
Japanese (ja)
Inventor
Toru Yamanaka
Noriyuki Hirowatari
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.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries 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 Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to JP7319578A priority Critical patent/JPS55326A/en
Publication of JPS55326A publication Critical patent/JPS55326A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain the title compound useful as an intermediate for dyes, rubber chemicals, and photographic developers in high yield, by hydrolyzing a reaction product, prepared through electrolysis of a phthalic acid diamide in the presence of a halogen compound in a solvent.
CONSTITUTION: A phthalic acid diamide, e.g. terephthalic acid diamide, is electrolyzed in the presence of a halogen compound, e.g. LiCl or NaCl, in a solvent, e.g. acetonitrile, using platinum or carbon electrodes at 0W80°C, preferably 5W 30°C. The electrolysis product is hydrolyzed at 30W100°C, preferably 30W80°C, to give phenylenediamine.
EFFECT: Inexpensive and easy method employing a small amount of alkali. The halogen compound can be recycled and regenerated.
USE: Raw materials for polyamides for special uses.
COPYRIGHT: (C)1980,JPO&Japio
JP7319578A 1978-06-19 1978-06-19 Preparation of phenylenediamine Pending JPS55326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7319578A JPS55326A (en) 1978-06-19 1978-06-19 Preparation of phenylenediamine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7319578A JPS55326A (en) 1978-06-19 1978-06-19 Preparation of phenylenediamine

Publications (1)

Publication Number Publication Date
JPS55326A true JPS55326A (en) 1980-01-05

Family

ID=13511108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7319578A Pending JPS55326A (en) 1978-06-19 1978-06-19 Preparation of phenylenediamine

Country Status (1)

Country Link
JP (1) JPS55326A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102505861A (en) * 2011-11-02 2012-06-20 天津二十冶建设有限公司 Side wall large-scale embedded part fixing and supporting method of cast-in-place concrete wall

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102505861A (en) * 2011-11-02 2012-06-20 天津二十冶建设有限公司 Side wall large-scale embedded part fixing and supporting method of cast-in-place concrete wall

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