JPS5466629A - Preparation of dihydric phenol - Google Patents

Preparation of dihydric phenol

Info

Publication number
JPS5466629A
JPS5466629A JP12966577A JP12966577A JPS5466629A JP S5466629 A JPS5466629 A JP S5466629A JP 12966577 A JP12966577 A JP 12966577A JP 12966577 A JP12966577 A JP 12966577A JP S5466629 A JPS5466629 A JP S5466629A
Authority
JP
Japan
Prior art keywords
acid
phenol
salt
dihydric phenol
mole
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
JP12966577A
Other languages
Japanese (ja)
Inventor
Tatsuki Nagaoka
Keiichi Yokoyama
Shigeji Shimizu
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 JP12966577A priority Critical patent/JPS5466629A/en
Publication of JPS5466629A publication Critical patent/JPS5466629A/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

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

Abstract

PURPOSE: To obtain a dihydric phenol, e.g. catechol, etc., with high selectively, by direct oxidation of a phenol with a peroxide, e.g. H2O2, etc., using a hydroxycarboxylic acid as a catalyst.
CONSTITUTION: A phenol is oxidized with at least one type of a peroxide or its salt selected from an organic peracid, e.g. peracetic acid, perpropionic acid, etc., H2O2, and an organic hydroperoxide selectively to give a dihydric phenol, e.g. pyrocatechol, etc. α-Hydroxymonocarboxylic acid or its salt, e.g. gtdrixtusibyttruc acic, benzilic acid, etc. having two hydroxarbon groups at the carbib atin at tge α-position to the carboxyle group, etc. may be cited as the hydroxymonocarboxylic acid or its salt, and the amount is 10-15W10-10 mole, preferably 10-4W5×10-2 mole per mole of the phenol.
EFFECT: High catalytic activity and outstanding activity even in a very small amount.
COPYRIGHT: (C)1979,JPO&Japio
JP12966577A 1977-10-31 1977-10-31 Preparation of dihydric phenol Pending JPS5466629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12966577A JPS5466629A (en) 1977-10-31 1977-10-31 Preparation of dihydric phenol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12966577A JPS5466629A (en) 1977-10-31 1977-10-31 Preparation of dihydric phenol

Publications (1)

Publication Number Publication Date
JPS5466629A true JPS5466629A (en) 1979-05-29

Family

ID=15015113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12966577A Pending JPS5466629A (en) 1977-10-31 1977-10-31 Preparation of dihydric phenol

Country Status (1)

Country Link
JP (1) JPS5466629A (en)

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