GB1128115A - Improvements in or relating to the preparation of 1,2,3,4-tetrachlorotetralin - Google Patents

Improvements in or relating to the preparation of 1,2,3,4-tetrachlorotetralin

Info

Publication number
GB1128115A
GB1128115A GB3409467A GB3409467A GB1128115A GB 1128115 A GB1128115 A GB 1128115A GB 3409467 A GB3409467 A GB 3409467A GB 3409467 A GB3409467 A GB 3409467A GB 1128115 A GB1128115 A GB 1128115A
Authority
GB
United Kingdom
Prior art keywords
tetrachlorotetralin
naphthoquinone
naphthalene
give
chloro
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
GB3409467A
Inventor
Lloyd Richard Buzbee
George Graff Ecke
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.)
Beazer East Inc
Original Assignee
Koppers Co Inc
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 to DE19671618593 priority Critical patent/DE1618593C3/en
Application filed by Koppers Co Inc filed Critical Koppers Co Inc
Priority to GB3409467A priority patent/GB1128115A/en
Publication of GB1128115A publication Critical patent/GB1128115A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C50/00—Quinones
    • C07C50/24—Quinones containing halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/013—Preparation of halogenated hydrocarbons by addition of halogens
    • C07C17/02—Preparation of halogenated hydrocarbons by addition of halogens to unsaturated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00—Preparation of quinones
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00—Preparation of quinones
    • C07C46/02—Preparation of quinones by oxidation giving rise to quinoid structures
    • C07C46/06—Preparation of quinones by oxidation giving rise to quinoid structures of at least one hydroxy group on a six-membered aromatic ring

Landscapes

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

Abstract

1,128,115. 1,2,3,4-Tetrachlorotetralin. KOPPERS CO. Inc. 25 July, 1967, No. 34094/67. Heading C2C. 1,2,3,4 - Tetrachlorotetralin, containing substantially more of the isomer which melts at 182‹ C., is prepared by contacting in an inert atmosphere a solution of naphthalene in an inert organic solvent, at a temperature in the range 20-60‹ C. with approximately two moles of gaseous chlorine per mole of naphthalene while exposing the solution to light. The 1,2,3,4- tetrachlorotetralin so obtained may be hydrolysed by refluxing with water to give 1,4-dihydroxy - 2,3 - dichlorotetralin, which is then heated with excess nitric acid at 70-100‹ C. to give 2 - chloro - 1,4 - naphthoquinone. The 2- chloro-1,4-naphthoquinone may then be treated with chlorine to give 2,3-dichloro-1,4-naphthoquinone. Suitable inert solvents for the naphthalene are, e.g., carbon tetrachloride, chlorobenzene, dichlorobenzene, nitrobenzene, trichloroethylene and perchloroethane.
GB3409467A 1967-04-10 1967-07-25 Improvements in or relating to the preparation of 1,2,3,4-tetrachlorotetralin Expired GB1128115A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19671618593 DE1618593C3 (en) 1967-04-10 1967-04-10 Process for the preparation of 2,3-dichloro-1,4-naphthoquinones
GB3409467A GB1128115A (en) 1967-04-10 1967-07-25 Improvements in or relating to the preparation of 1,2,3,4-tetrachlorotetralin

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEK0061955 1967-04-10
GB3409467A GB1128115A (en) 1967-04-10 1967-07-25 Improvements in or relating to the preparation of 1,2,3,4-tetrachlorotetralin

Publications (1)

Publication Number Publication Date
GB1128115A true GB1128115A (en) 1968-09-25

Family

ID=25984361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3409467A Expired GB1128115A (en) 1967-04-10 1967-07-25 Improvements in or relating to the preparation of 1,2,3,4-tetrachlorotetralin

Country Status (1)

Country Link
GB (1) GB1128115A (en)

Also Published As

Publication number Publication date
DE1618593B2 (en) 1975-11-20
DE1618593A1 (en) 1970-12-23

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