GB1125077A - Process for the production of a mixture of o- and p- cresol - Google Patents

Process for the production of a mixture of o- and p- cresol

Info

Publication number
GB1125077A
GB1125077A GB1794167A GB1794167A GB1125077A GB 1125077 A GB1125077 A GB 1125077A GB 1794167 A GB1794167 A GB 1794167A GB 1794167 A GB1794167 A GB 1794167A GB 1125077 A GB1125077 A GB 1125077A
Authority
GB
United Kingdom
Prior art keywords
reaction
proportion
water
cresol
cresols
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
GB1794167A
Inventor
Efim Biller
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.)
Union Rheinische Braunkohlen Kraftstoff AG
Original Assignee
Union Rheinische Braunkohlen Kraftstoff AG
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 Union Rheinische Braunkohlen Kraftstoff AG filed Critical Union Rheinische Braunkohlen Kraftstoff AG
Publication of GB1125077A publication Critical patent/GB1125077A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,125,077. Cresols. UNION RHEINISCHE BRAUNKOHLEN KRAFTSTOFF. 19 April, 1967 [28 April, 1966], No. 17941/87. Heading C2C. Phenol is alkylated by reaction with methanol at 200-240‹ C. in the presence of an aqueous catalyst containing zinc bromide and hydrogen bromide in a proportion of 2À5-10 mols. of water and 0À05-0À5 mol. of hydrogen bromide per mol. of zinc bromide, the proportion of methanol in the reaction mixture being restricted so that the proportion of water specified above is not exceeded on account of water formed in the reaction. The reaction procuct is cooled to a temperature below 130‹ C., whereby an organic phase and an aqueous phase are formed, and cresols are recovered from the organic phase. Products containing o- and p-oresol but substantially free from m-cresol are obtained. An example is given.
GB1794167A 1966-04-28 1967-04-19 Process for the production of a mixture of o- and p- cresol Expired GB1125077A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEU0012646 1966-04-28

Publications (1)

Publication Number Publication Date
GB1125077A true GB1125077A (en) 1968-08-28

Family

ID=7568066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1794167A Expired GB1125077A (en) 1966-04-28 1967-04-19 Process for the production of a mixture of o- and p- cresol

Country Status (3)

Country Link
DE (1) DE1543943A1 (en)
GB (1) GB1125077A (en)
NL (1) NL6705385A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999019275A1 (en) * 1997-10-09 1999-04-22 Bromine Compounds Ltd. Process for electrophilic aromatic substitution

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999019275A1 (en) * 1997-10-09 1999-04-22 Bromine Compounds Ltd. Process for electrophilic aromatic substitution
US6399835B1 (en) 1997-10-09 2002-06-04 Bromine Compounds Ltd. Process for electrophilic aromatic substitution
CN1127457C (en) * 1997-10-09 2003-11-12 溴化合物有限公司 Process for electrophilic aromatic substitution

Also Published As

Publication number Publication date
DE1543943A1 (en) 1970-02-12
NL6705385A (en) 1967-10-30

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