GB206150A - Manufacture of new derivatives of naphthoquinone - Google Patents

Manufacture of new derivatives of naphthoquinone

Info

Publication number
GB206150A
GB206150A GB26612/23A GB2661223A GB206150A GB 206150 A GB206150 A GB 206150A GB 26612/23 A GB26612/23 A GB 26612/23A GB 2661223 A GB2661223 A GB 2661223A GB 206150 A GB206150 A GB 206150A
Authority
GB
United Kingdom
Prior art keywords
oxynaphthalene
naphthoquinone
arylimino
phenylimino
naphthoquinones
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
GB26612/23A
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.)
Matieres Colorantes & Prod Chi
Original Assignee
Matieres Colorantes & Prod Chi
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 Matieres Colorantes & Prod Chi filed Critical Matieres Colorantes & Prod Chi
Publication of GB206150A publication Critical patent/GB206150A/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
    • C07C309/45—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
    • C07C309/49—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton the carbon skeleton being further substituted by singly-bound oxygen atoms

Landscapes

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

Abstract

Arylimino-2-naphthoquinones, excepting the phenylimino body, are prepared by the process described in the parent Specification by the oxidation in alkaline solution, for example by means of hypochlorites, peroxides or atmospheric oxygen, of 1-arylamino-2-oxynaphthalenes, prepared for example as described in Specification 182,084. An example shows the oxidation by means of cold alkaline hypochlorite of o-methoxyphenyl-1-amino-2-oxynaphthalene, obtained by the action of o-anisidine on a -chlor- or a -brom-b -naphthol. 1-Tolylamino-2-oxynaphthalene and 1-naphthylamino-2-oxynaphthalene may be similarly treated. 1-Arylamino-2-oxynaphthalene sulphonic acids are produced by the action of a normal or acid sulphite upon the 1-arylimino-2-naphthoquinones described above. An example shows the treatment of 1-phenylimino-2-naphthoquinone or any of its homologues or immediate derivatives with sodium bisulphite. The sodium salt thus formed is dissolved in sodium carbonate solution and the free acid liberated by acidification with a mineral acid.
GB26612/23A 1922-10-28 1923-10-24 Manufacture of new derivatives of naphthoquinone Expired GB206150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR206150X 1922-10-28

Publications (1)

Publication Number Publication Date
GB206150A true GB206150A (en) 1925-01-15

Family

ID=8880407

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26612/23A Expired GB206150A (en) 1922-10-28 1923-10-24 Manufacture of new derivatives of naphthoquinone

Country Status (1)

Country Link
GB (1) GB206150A (en)

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