GB1284285A - Process for selective methylation of phenols - Google Patents

Process for selective methylation of phenols

Info

Publication number
GB1284285A
GB1284285A GB4881569A GB4881569A GB1284285A GB 1284285 A GB1284285 A GB 1284285A GB 4881569 A GB4881569 A GB 4881569A GB 4881569 A GB4881569 A GB 4881569A GB 1284285 A GB1284285 A GB 1284285A
Authority
GB
United Kingdom
Prior art keywords
oxide
oct
oxides
mixture
phenols
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.)
Expired
Application number
GB4881569A
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
Priority claimed from JP43072729A external-priority patent/JPS522894B1/ja
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of GB1284285A publication Critical patent/GB1284285A/en
Expired 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
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • 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
    • 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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/18—Arsenic, antimony or bismuth
    • 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)

Abstract

1284285 Selective methylation of phenols SUMITOMO CHEMICAL CO Ltd 3 Oct 1969 [5 Oct 1968 7 Oct 1968 31 Oct 1968] 48815/69 Heading C2C A process for the ortho-methylation of a phenol of formula wherein each of R 1 , R 2 , R 3 and R 4 which may be the same or different, represents a hydrogen atom or a (C 1-6 ) saturated aliphatic hydrocarbon group, comprises reacting the phenol with methanol in a gas phase at an elevated temperature in the presence of a catalyst which is (1) component (a) cerium oxide or a mixture of oxides of rare earth elements composed mainly of cerium oxide, in combination with, as component (b) at least one oxide which is titanium oxide, tin oxide, antimony oxide or bismuth oxide; (2) a mixture of oxides comprising (a) and magnesium oxide, or (3) a mixture of oxides comprising (a), (b) and magnesium oxide.
GB4881569A 1968-10-05 1969-10-03 Process for selective methylation of phenols Expired GB1284285A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP43072729A JPS522894B1 (en) 1968-10-05 1968-10-05
JP7302468 1968-10-07

Publications (1)

Publication Number Publication Date
GB1284285A true GB1284285A (en) 1972-08-02

Family

ID=26413867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4881569A Expired GB1284285A (en) 1968-10-05 1969-10-03 Process for selective methylation of phenols

Country Status (1)

Country Link
GB (1) GB1284285A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0038377A1 (en) * 1980-01-28 1981-10-28 Conoco Phillips Company Process for the synthesis of ortho-cresol, 2,6-xylenol and 2,3,6-trimethyl phenol
US5137862A (en) * 1990-08-22 1992-08-11 Imperial Chemical Industries Plc Oxidation catalysts
US5263998A (en) * 1990-08-22 1993-11-23 Imperial Chemical Industries Plc Catalysts
EP2077253A1 (en) * 2006-10-24 2009-07-08 DOWA Electronics Materials Co., Ltd. Composite oxide for use as exhaust gas clean-up catalyst, and filter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0038377A1 (en) * 1980-01-28 1981-10-28 Conoco Phillips Company Process for the synthesis of ortho-cresol, 2,6-xylenol and 2,3,6-trimethyl phenol
US5137862A (en) * 1990-08-22 1992-08-11 Imperial Chemical Industries Plc Oxidation catalysts
US5263998A (en) * 1990-08-22 1993-11-23 Imperial Chemical Industries Plc Catalysts
EP2077253A1 (en) * 2006-10-24 2009-07-08 DOWA Electronics Materials Co., Ltd. Composite oxide for use as exhaust gas clean-up catalyst, and filter
EP2077253A4 (en) * 2006-10-24 2014-09-10 Dowa Electronics Materials Co Composite oxide for use as exhaust gas clean-up catalyst, and filter

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years