GB1373213A - Process for the manufacture of 1/ 4- dichloroanthraquinone - Google Patents

Process for the manufacture of 1/ 4- dichloroanthraquinone

Info

Publication number
GB1373213A
GB1373213A GB4008671A GB4008671A GB1373213A GB 1373213 A GB1373213 A GB 1373213A GB 4008671 A GB4008671 A GB 4008671A GB 4008671 A GB4008671 A GB 4008671A GB 1373213 A GB1373213 A GB 1373213A
Authority
GB
United Kingdom
Prior art keywords
dichloroanthraquinone
manufacture
aug
compound
formula
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
GB4008671A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB4008671A priority Critical patent/GB1373213A/en
Priority to DE2240518A priority patent/DE2240518A1/en
Priority to JP47085791A priority patent/JPS4831233A/ja
Publication of GB1373213A publication Critical patent/GB1373213A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C07C50/00—Quinones

Landscapes

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

Abstract

1373213 Preparation of 1,4-dichloroanthraquinone IMPERIAL CHEMICAL INDUSTRIES Ltd 4 Aug 1972 [26 Aug 1971] 40086/71 Heading C2C The invention comprises a process for the preparation of 1,4-dichloroanthraquinone in which a compound of Formula I or a tautomer thereof, is reacted with thionyl chloride. The compound of Formula I may be prepared in situ by heating a mixture of thionyl chloride and 1,4-dihydroxyanthraquinone.
GB4008671A 1971-08-26 1971-08-26 Process for the manufacture of 1/ 4- dichloroanthraquinone Expired GB1373213A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4008671A GB1373213A (en) 1971-08-26 1971-08-26 Process for the manufacture of 1/ 4- dichloroanthraquinone
DE2240518A DE2240518A1 (en) 1971-08-26 1972-08-17 PROCESS FOR THE PREPARATION OF 1,4-DICHLORANTHRAQUINONE
JP47085791A JPS4831233A (en) 1971-08-26 1972-08-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4008671A GB1373213A (en) 1971-08-26 1971-08-26 Process for the manufacture of 1/ 4- dichloroanthraquinone

Publications (1)

Publication Number Publication Date
GB1373213A true GB1373213A (en) 1974-11-06

Family

ID=10413139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4008671A Expired GB1373213A (en) 1971-08-26 1971-08-26 Process for the manufacture of 1/ 4- dichloroanthraquinone

Country Status (3)

Country Link
JP (1) JPS4831233A (en)
DE (1) DE2240518A1 (en)
GB (1) GB1373213A (en)

Also Published As

Publication number Publication date
JPS4831233A (en) 1973-04-24
DE2240518A1 (en) 1973-03-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees