GB750819A - Improvements in or relating to the manufacture of 2.5-dichloro alkali metal phenolates - Google Patents

Improvements in or relating to the manufacture of 2.5-dichloro alkali metal phenolates

Info

Publication number
GB750819A
GB750819A GB30773/53A GB3077353A GB750819A GB 750819 A GB750819 A GB 750819A GB 30773/53 A GB30773/53 A GB 30773/53A GB 3077353 A GB3077353 A GB 3077353A GB 750819 A GB750819 A GB 750819A
Authority
GB
United Kingdom
Prior art keywords
alkali metal
dichloro
manufacture
relating
hexachloro cyclohexane
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
GB30773/53A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB750819A publication Critical patent/GB750819A/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
    • C07C37/64—Preparation of O-metal compounds with O-metal group bound to a carbon atom belonging to a six-membered aromatic ring
    • 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
    • C07C37/055—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 the substituted group being bound to oxygen, e.g. ether group

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A process for the manufacture of 2.5-dichloro alkali metal phenolates comprises reacting hexachloro cyclohexane in the presence of methanol under pressure with an alkali metal hydroxide at a temperature between 160 DEG C. and 180 DEG C. The alkali metal hydroxide, which may be sodium or potassium hydroxide, should be present in such quantity that its molecular ratio to that of the hexachloro cyclohexane is at least 5 to 1, and is preferably 7 to 8 mols. of hydroxide per mol. of hexachloro cyclohexane. The hexachloro cyclohexane may be an isomeric mixture from which most of the g isomer has been removed. The product may be converted to 2.5-dichloro phenol by treatment with sulphuric acid. Examples of the process are given.
GB30773/53A 1952-11-10 1953-11-06 Improvements in or relating to the manufacture of 2.5-dichloro alkali metal phenolates Expired GB750819A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL750819X 1952-11-10

Publications (1)

Publication Number Publication Date
GB750819A true GB750819A (en) 1956-06-20

Family

ID=19824120

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30773/53A Expired GB750819A (en) 1952-11-10 1953-11-06 Improvements in or relating to the manufacture of 2.5-dichloro alkali metal phenolates

Country Status (1)

Country Link
GB (1) GB750819A (en)

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