GB757965A - Improvements in or relating to the production of 2,5-dichlorophenol - Google Patents

Improvements in or relating to the production of 2,5-dichlorophenol

Info

Publication number
GB757965A
GB757965A GB31132/54A GB3113254A GB757965A GB 757965 A GB757965 A GB 757965A GB 31132/54 A GB31132/54 A GB 31132/54A GB 3113254 A GB3113254 A GB 3113254A GB 757965 A GB757965 A GB 757965A
Authority
GB
United Kingdom
Prior art keywords
dichlorophenol
mixture
relating
production
trichlorobenzenes
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
GB31132/54A
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.)
Olin Corp
Original Assignee
Olin Corp
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 Olin Corp filed Critical Olin Corp
Publication of GB757965A publication Critical patent/GB757965A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C07C39/24—Halogenated derivatives
    • C07C39/26—Halogenated derivatives monocyclic monohydroxylic containing halogen bound to ring carbon atoms
    • C07C39/27—Halogenated derivatives monocyclic monohydroxylic containing halogen bound to ring carbon atoms all halogen atoms being bound to ring carbon atoms
    • 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
    • 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
    • C07C37/62—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by introduction of halogen; by substitution of halogen atoms by other halogen atoms

Landscapes

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

Abstract

2:5-Dichlorophenol is produced by the cooling of a mixture of dichlorophenols, containing at least 50 per cent of 2:5-dichlorophenol, to 0-5 DEG C., until 1/2 to 1/3 of the mixture separates out, and removing the solid phase. The mixture may be produced by the hydrolysis of a mixture of 1:2:3- and 1:2:4-trichlorobenzenes, which may be obtained by the dehydrohalogenation of benzene hexachloride. The precipitated solid may be separated by centrifuging from the liquor. Crude or purified trichlorobenzenes obtained as above may be used, hydrolysed with caustic alkali in alcohols or glycols.
GB31132/54A 1953-10-29 1954-10-28 Improvements in or relating to the production of 2,5-dichlorophenol Expired GB757965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US757965XA 1953-10-29 1953-10-29

Publications (1)

Publication Number Publication Date
GB757965A true GB757965A (en) 1956-09-26

Family

ID=22128037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31132/54A Expired GB757965A (en) 1953-10-29 1954-10-28 Improvements in or relating to the production of 2,5-dichlorophenol

Country Status (1)

Country Link
GB (1) GB757965A (en)

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