JPS5643229A - Preparation of ortho-alkylated phenols - Google Patents

Preparation of ortho-alkylated phenols

Info

Publication number
JPS5643229A
JPS5643229A JP11872579A JP11872579A JPS5643229A JP S5643229 A JPS5643229 A JP S5643229A JP 11872579 A JP11872579 A JP 11872579A JP 11872579 A JP11872579 A JP 11872579A JP S5643229 A JPS5643229 A JP S5643229A
Authority
JP
Japan
Prior art keywords
ortho
catalyst
phenols
hydrocarbon group
compound selected
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
JP11872579A
Other languages
Japanese (ja)
Inventor
Shoei Kudo
Motoo Kawamata
Kazufumi Oshima
Mitsuo Onobusa
Makoto Kotani
Takeshi Tsuda
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 Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP11872579A priority Critical patent/JPS5643229A/en
Publication of JPS5643229A publication Critical patent/JPS5643229A/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
    • 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
    • Y02P20/584—Recycling of catalysts

Abstract

PURPOSE: To prepare the titled compound in high selectivity, suppressing the decomposition of alcohols, by the selective alkylation of phenols at the ortho-position in the presence of a chromium oxide-containing catalyst, and a compound selected from sulfur oxides, nitrogen oxides, etc.
CONSTITUTION: Alkylphenols having one or more alkyl groups at ortho position, and useful as a raw material of polyphenylene ether, etc., are prepared by the catalytic gas-phase reaction of phenols having H atom at the ortho-position and denoted by the formula (R1WR4 are H, 1W4C saturated hydrocarbon group, or aromatic hydrocarbon group) with 1W4C lower alcohols in the presence of a catalyst containing chromium oxide or manganese oxide, and in the coexistence of a mixed gas containing at least one compound selected from sulfur oxides, nitrogen oxides, H2S, CO and CO2, at 310W470°C and a gas space velocity of 250W20,000hr-1.
EFFECT: The rate of deposition of oxygen-containing hydrocarbons to the surface of the catalyst can be reduced, and the regeneration cycle of the catalyst can be elongated.
COPYRIGHT: (C)1981,JPO&Japio
JP11872579A 1979-09-18 1979-09-18 Preparation of ortho-alkylated phenols Pending JPS5643229A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11872579A JPS5643229A (en) 1979-09-18 1979-09-18 Preparation of ortho-alkylated phenols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11872579A JPS5643229A (en) 1979-09-18 1979-09-18 Preparation of ortho-alkylated phenols

Publications (1)

Publication Number Publication Date
JPS5643229A true JPS5643229A (en) 1981-04-21

Family

ID=14743528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11872579A Pending JPS5643229A (en) 1979-09-18 1979-09-18 Preparation of ortho-alkylated phenols

Country Status (1)

Country Link
JP (1) JPS5643229A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670778A1 (en) * 1990-12-19 1992-06-26 Rhone Poulenc Chimie Process for the C-alkylation of diphenols and of their monoethers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4899128A (en) * 1972-03-31 1973-12-15
JPS5076032A (en) * 1973-11-06 1975-06-21
JPS5479237A (en) * 1977-12-06 1979-06-25 Mitsui Toatsu Chem Inc Selective ortho-alkylation of phenol

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4899128A (en) * 1972-03-31 1973-12-15
JPS5076032A (en) * 1973-11-06 1975-06-21
JPS5479237A (en) * 1977-12-06 1979-06-25 Mitsui Toatsu Chem Inc Selective ortho-alkylation of phenol

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670778A1 (en) * 1990-12-19 1992-06-26 Rhone Poulenc Chimie Process for the C-alkylation of diphenols and of their monoethers

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