GB386997A - Improved manufacture of anthraquinone derivatives - Google Patents

Improved manufacture of anthraquinone derivatives

Info

Publication number
GB386997A
GB386997A GB2114531A GB2114531A GB386997A GB 386997 A GB386997 A GB 386997A GB 2114531 A GB2114531 A GB 2114531A GB 2114531 A GB2114531 A GB 2114531A GB 386997 A GB386997 A GB 386997A
Authority
GB
United Kingdom
Prior art keywords
disulphonate
halogen
trihalogenanthraquinones
halogenanthraquinone
dichloroanthraquinone
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
GB2114531A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2114531A priority Critical patent/GB386997A/en
Publication of GB386997A publication Critical patent/GB386997A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
    • C07C309/01—Sulfonic acids
    • C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C309/39—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing halogen atoms bound to the carbon skeleton

Abstract

Di - halogenanthraquinone mono - sulphonic acids and trihalogenanthraquinones therefrom are obtained by sulphonating in absence of catalysts, a homonuclear di-halogenanthraquinone in which one halogen atom occupies the 1-position, to give mono-sulphonic acids, which are separated and treated with halogen to give trihalogenanthraquinones. According to examples, 1 : 2, 1 : 3, and 1 : 4 dichloranthraquinones are suphonated in fuming sulphuric acid and the products may be treated with halogen to replace the sulphonic groups in known manner. Specification 373,127 is referred to. The Provisional Specification refers also to the formation of disulphonic acids and is not limited to dihalogen compounds with a halogen atom in the 1-position. In examples 1 : 5 - dichloroanthraquinone is sulphonated with and without a mercury catalyst to yield respectively the 2- and 4-sulphonates and the 2 : 8-disulphonate and the 4-sulphonate and 4 : 8-disulphonate. Sulphonation of 1 : 8-dichloroanthraquinone yielded the 4-sulphonate and the 4 : 5-disulphonate the amount of the latter being increased by adding a mercury catalyst. Chlorination gives the corresponding tri- and tetrachloroanthraquinones.
GB2114531A 1931-07-24 1931-07-24 Improved manufacture of anthraquinone derivatives Expired GB386997A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2114531A GB386997A (en) 1931-07-24 1931-07-24 Improved manufacture of anthraquinone derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2114531A GB386997A (en) 1931-07-24 1931-07-24 Improved manufacture of anthraquinone derivatives

Publications (1)

Publication Number Publication Date
GB386997A true GB386997A (en) 1933-01-24

Family

ID=10157952

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2114531A Expired GB386997A (en) 1931-07-24 1931-07-24 Improved manufacture of anthraquinone derivatives

Country Status (1)

Country Link
GB (1) GB386997A (en)

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