GB1130960A - Process for preparing 2,3-xylenol - Google Patents

Process for preparing 2,3-xylenol

Info

Publication number
GB1130960A
GB1130960A GB5638666A GB5638666A GB1130960A GB 1130960 A GB1130960 A GB 1130960A GB 5638666 A GB5638666 A GB 5638666A GB 5638666 A GB5638666 A GB 5638666A GB 1130960 A GB1130960 A GB 1130960A
Authority
GB
United Kingdom
Prior art keywords
tertiary
dimethyl
alkyl
acid
xylenol
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
GB5638666A
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 GB1130960A publication Critical patent/GB1130960A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
    • 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
    • C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
    • C07C37/04—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis by substitution of SO3H groups or a derivative thereof
    • 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
    • C07C37/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
    • C07C39/02—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring monocyclic with no unsaturation outside the aromatic ring
    • C07C39/06—Alkylated phenols
    • C07C39/07—Alkylated phenols containing only methyl groups, e.g. cresols, xylenols

Landscapes

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

Abstract

1,130,960. 2,3-Xylenol. SUMITOMO CHEMICAL CO. Ltd. 16 Dec., 1966 [28 Dec., 1965; 22 Jan., 1966], No. 56386/66. Heading C2C. [Also in Divisions A5 and C5] 2,3-Xylenol is prepared by heating 2,3-dimethyl - 5 - tertiary - alkyl phenol in the presence of sulphuric acid, phosphoric acid, hydrofluoric acid, aluminium trichloride, zinc dichloride, stannic chloride, titanium tetrachloride or boron trifluoride. The 2,3-dimethyl- 5-tertiary alkyl phenol used as starting material may be obtained from o-xylene by (a) treating o-xylene with a tertiary olefin, a tertiary-alkyl halide or a tertiary-alkyl alcohol in the presence of a Friedel-Crafts catalyst to form 3,4-dimethyl-tertiary alkyl benzene; (b) treating this with concentrated sulphuric acid to give 2,3 - dimethyl - 5 - tertiary - alkyl benzene sulphonic acid; (c) fusing this sulphonic acid with potassium hydroxide and/or sodium hydroxide to form 2,3-dimethyl-5-tertiary alkyl phenol.
GB5638666A 1965-12-28 1966-12-16 Process for preparing 2,3-xylenol Expired GB1130960A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8108465 1965-12-28
JP379666 1966-01-22

Publications (1)

Publication Number Publication Date
GB1130960A true GB1130960A (en) 1968-10-16

Family

ID=26337435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5638666A Expired GB1130960A (en) 1965-12-28 1966-12-16 Process for preparing 2,3-xylenol

Country Status (6)

Country Link
BE (1) BE691848A (en)
CH (2) CH489451A (en)
DE (1) DE1543894A1 (en)
FR (1) FR1506170A (en)
GB (1) GB1130960A (en)
NL (1) NL6618177A (en)

Also Published As

Publication number Publication date
CH497357A (en) 1970-10-15
DE1543894A1 (en) 1970-02-05
CH489451A (en) 1970-04-30
NL6618177A (en) 1967-06-29
BE691848A (en) 1967-05-29
FR1506170A (en) 1967-12-15

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