GB339589A - Improvements in and relating to anthraquinone derivatives - Google Patents

Improvements in and relating to anthraquinone derivatives

Info

Publication number
GB339589A
GB339589A GB1718629A GB1718629A GB339589A GB 339589 A GB339589 A GB 339589A GB 1718629 A GB1718629 A GB 1718629A GB 1718629 A GB1718629 A GB 1718629A GB 339589 A GB339589 A GB 339589A
Authority
GB
United Kingdom
Prior art keywords
acid
anhydride
borax
boric acid
dichlorphthalic
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
GB1718629A
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.)
PHILIP FLETCHER BANGHAM
Scottish Dyes Ltd
Original Assignee
PHILIP FLETCHER BANGHAM
Scottish Dyes 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 PHILIP FLETCHER BANGHAM, Scottish Dyes Ltd filed Critical PHILIP FLETCHER BANGHAM
Priority to GB1718629A priority Critical patent/GB339589A/en
Publication of GB339589A publication Critical patent/GB339589A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00—Preparation of quinones

Abstract

339,589. Bangham, P. F., Hooley, L. J., Thomas, J., and Scottish Dyes, Ltd. June 4, 1929. Anthraquinone derivatives with heteronuclear halogen substituents are obtained by condensing halogenated phthalic acids, salts, or anhydrides with halogenated phenols in sulphuric acid or oleum, with boric acid, or borax. Halogen atoms in a-position may be wholly or partially hydrolyzed to hydroxy groups. According to examples, (1) p-chlorphenol is condensed with 4-chlor-phthalic anhydride, acid potassium-4-chlor-phthalate, acidpotassium - 3 : 4 - dichlorphthalate, 3 : 4-dichlorphthalic anhydride, and 4 : 5-dichlorophthalic anhydride, with sulphuric acid and boric acid or borax, and (2) 2 : 4-dichlorphenol and o-chlorphenol are condensed with 4 : 5-dichlorphthalic anhydride and acid respectively, with the aid of sulphuric acid and boric acid or borax. The products are chlorinated quinizarins and alizarins.
GB1718629A 1929-06-04 1929-06-04 Improvements in and relating to anthraquinone derivatives Expired GB339589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1718629A GB339589A (en) 1929-06-04 1929-06-04 Improvements in and relating to anthraquinone derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1718629A GB339589A (en) 1929-06-04 1929-06-04 Improvements in and relating to anthraquinone derivatives

Publications (1)

Publication Number Publication Date
GB339589A true GB339589A (en) 1930-12-04

Family

ID=10090766

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1718629A Expired GB339589A (en) 1929-06-04 1929-06-04 Improvements in and relating to anthraquinone derivatives

Country Status (1)

Country Link
GB (1) GB339589A (en)

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