FR2187745A1 - Selective ortho methylation of phenols - by catalytic reaction with methanol - Google Patents

Selective ortho methylation of phenols - by catalytic reaction with methanol

Info

Publication number
FR2187745A1
FR2187745A1 FR7321257A FR7321257A FR2187745A1 FR 2187745 A1 FR2187745 A1 FR 2187745A1 FR 7321257 A FR7321257 A FR 7321257A FR 7321257 A FR7321257 A FR 7321257A FR 2187745 A1 FR2187745 A1 FR 2187745A1
Authority
FR
France
Prior art keywords
phenols
methanol
catalytic reaction
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.)
Granted
Application number
FR7321257A
Other languages
French (fr)
Other versions
FR2187745B1 (en
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of FR2187745A1 publication Critical patent/FR2187745A1/en
Application granted granted Critical
Publication of FR2187745B1 publication Critical patent/FR2187745B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/14—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of germanium, tin or lead
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
    • C07C37/16—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms by condensation involving hydroxy groups of phenols or alcohols or the ether or mineral ester group derived therefrom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Selective methylation in the o-posn of phenols of formula (I): (where R1, R2, R3 and R4 (same or different)=H or satd 1-6C aliphatic hydrocarbon gps is carried out by reacting (I) with MeOH in the vapour phase at elevated temps using a 3-component CeO2-MgO-GeO2 catalyst or a 4-component CeO2-MgO-GeO2-SnO2 catalyst. Pref. reaction is at 300-500 degrees C using a solid or fluidised bed catalyst with a 1:1-15 mol ratio I:MeOH. Process is esp. useful for making o-phenol from m-cresol.
FR7321257A 1972-06-12 1973-06-12 Selective ortho methylation of phenols - by catalytic reaction with methanol Granted FR2187745A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5878872A JPS5118938B2 (en) 1972-06-12 1972-06-12

Publications (2)

Publication Number Publication Date
FR2187745A1 true FR2187745A1 (en) 1974-01-18
FR2187745B1 FR2187745B1 (en) 1976-05-28

Family

ID=13094297

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7321257A Granted FR2187745A1 (en) 1972-06-12 1973-06-12 Selective ortho methylation of phenols - by catalytic reaction with methanol

Country Status (6)

Country Link
JP (1) JPS5118938B2 (en)
BE (1) BE800665A (en)
CA (1) CA995254A (en)
DE (1) DE2329812C3 (en)
FR (1) FR2187745A1 (en)
NL (1) NL7307975A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2756461C2 (en) * 1977-12-17 1984-10-31 Rütgerswerke AG, 6000 Frankfurt Process for the preparation of mono-o-alkylphenols
NL187157C (en) * 1980-03-29 1991-06-17 Union Rheinische Braunkohlen METHOD FOR PREPARING 2,6-DIG SUBSTITUTED PHENOLS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
BE800665A (en) 1973-10-01
JPS5118938B2 (en) 1976-06-14
NL7307975A (en) 1973-12-14
FR2187745B1 (en) 1976-05-28
DE2329812B2 (en) 1977-08-11
CA995254A (en) 1976-08-17
DE2329812C3 (en) 1978-04-06
DE2329812A1 (en) 1974-01-10
JPS4914433A (en) 1974-02-07

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Legal Events

Date Code Title Description
ST Notification of lapse