JPS5772932A - Preparation of 3-substituted formylcatechol - Google Patents

Preparation of 3-substituted formylcatechol

Info

Publication number
JPS5772932A
JPS5772932A JP55147581A JP14758180A JPS5772932A JP S5772932 A JPS5772932 A JP S5772932A JP 55147581 A JP55147581 A JP 55147581A JP 14758180 A JP14758180 A JP 14758180A JP S5772932 A JPS5772932 A JP S5772932A
Authority
JP
Japan
Prior art keywords
substituted
catalyst
compound
diformylphenol
raw material
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
JP55147581A
Other languages
Japanese (ja)
Inventor
Fumio Iwata
Takahito Nakamura
Shinji Amiya
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.)
Ube Corp
Original Assignee
Ube 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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP55147581A priority Critical patent/JPS5772932A/en
Publication of JPS5772932A publication Critical patent/JPS5772932A/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)
  • Catalysts (AREA)

Abstract

PURPOSE: To obtain the titled compond useful as an intermediate for drugs selectively in high yield, by oxidizing a specific 2-substituted 4,6-diformylphenol as a raw material with hydrogen peroxide in the presence of a catalyst, e.g., copper compound in a basic aqueous solution.
CONSTITUTION: A 2-substituted 4,6-diformylphenol shown by the formulaI(X is alkoxy, alkyl, halogen, or H) is neutralized with an equivalent weight of a basic aqeuous solution of NaOH, etc. Afte adding a catalyst of a copper compound or silver compound to the phenol, it is oxidized with hydrogen peroxide in the form an aqueous solution while being kept at 0W25°C until a pH value of the reaction solution exhibits apporoximately 4 at 0W45°C, to give the desired compound shown by the formula II. A water-soluble compound, e.g., CuSO4, AgNO3, CuCl2,Cu (NO3)2, Cu(PO4)2, etc. is used as the catalyst.
USE: A raw material especially for 3,4,5-trimethoxybenzaldehyde, etc.
COPYRIGHT: (C)1982,JPO&Japio
JP55147581A 1980-10-23 1980-10-23 Preparation of 3-substituted formylcatechol Pending JPS5772932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55147581A JPS5772932A (en) 1980-10-23 1980-10-23 Preparation of 3-substituted formylcatechol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55147581A JPS5772932A (en) 1980-10-23 1980-10-23 Preparation of 3-substituted formylcatechol

Publications (1)

Publication Number Publication Date
JPS5772932A true JPS5772932A (en) 1982-05-07

Family

ID=15433582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55147581A Pending JPS5772932A (en) 1980-10-23 1980-10-23 Preparation of 3-substituted formylcatechol

Country Status (1)

Country Link
JP (1) JPS5772932A (en)

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