JPS56135434A - Selective ortho-methylation of phenol compound - Google Patents

Selective ortho-methylation of phenol compound

Info

Publication number
JPS56135434A
JPS56135434A JP3752880A JP3752880A JPS56135434A JP S56135434 A JPS56135434 A JP S56135434A JP 3752880 A JP3752880 A JP 3752880A JP 3752880 A JP3752880 A JP 3752880A JP S56135434 A JPS56135434 A JP S56135434A
Authority
JP
Japan
Prior art keywords
oxide
phenol compound
ortho
catalyst
methylation
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
JP3752880A
Other languages
Japanese (ja)
Inventor
Hideo Kinoshita
Yoshiharu Sato
Kyosuke Komiya
Ryoji Kitahama
Isamu Iwami
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.)
Asahi Dow Ltd
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Dow Ltd
Asahi Chemical Industry Co 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 Asahi Dow Ltd, Asahi Chemical Industry Co Ltd filed Critical Asahi Dow Ltd
Priority to JP3752880A priority Critical patent/JPS56135434A/en
Publication of JPS56135434A publication Critical patent/JPS56135434A/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 carry out the ortho-methylation reaction of a phenol compound using a highly active, highly selective and long-life catalyst containing vanadium oxide, chromium oxide and optionally silcon oxide.
CONSTITUTION: A phenol compound of the formula (R1WR4 are H or alkyl) and methanol are subjected to the vapor phase catalytic reaction at 250W500°C using a catalyst containing a vanadium oxide and a chromium oxide or a manganese oxide, and optionally silicon oxide, to give a phenol compound methylated at the ortho- position. The atomic ratios in the catalyst are preferably V:Cr or Mn:Si=100:(1W 20):(0W70). The catalyst is prepared from oxides of V, Cr and Mn sodium silicate etc. by mixing, precipitation, or evaporation to dryness etc. followed by calcination at 300W600°C.
USE: For example, raw material of a heat-resistant polymer, polyphenylene oxide.
COPYRIGHT: (C)1981,JPO&Japio
JP3752880A 1980-03-26 1980-03-26 Selective ortho-methylation of phenol compound Pending JPS56135434A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3752880A JPS56135434A (en) 1980-03-26 1980-03-26 Selective ortho-methylation of phenol compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3752880A JPS56135434A (en) 1980-03-26 1980-03-26 Selective ortho-methylation of phenol compound

Publications (1)

Publication Number Publication Date
JPS56135434A true JPS56135434A (en) 1981-10-22

Family

ID=12500034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3752880A Pending JPS56135434A (en) 1980-03-26 1980-03-26 Selective ortho-methylation of phenol compound

Country Status (1)

Country Link
JP (1) JPS56135434A (en)

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