GB513281A - Manufacture of a vat dyestuff - Google Patents

Manufacture of a vat dyestuff

Info

Publication number
GB513281A
GB513281A GB1047138A GB1047138A GB513281A GB 513281 A GB513281 A GB 513281A GB 1047138 A GB1047138 A GB 1047138A GB 1047138 A GB1047138 A GB 1047138A GB 513281 A GB513281 A GB 513281A
Authority
GB
United Kingdom
Prior art keywords
benzoylaminoanthraquinone
nitrobenzene
april
dyes
effected
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
GB1047138A
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.)
EI Du Pont de Nemours and Co
Original Assignee
EI Du Pont de Nemours and Co
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 US513281XA priority Critical
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB513281A publication Critical patent/GB513281A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B5/00Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/24Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
    • C09B5/26Carbazoles of the anthracene series
    • C09B5/28Anthrimide carbazoles

Abstract

513,281. Dyes. DU PONT DE NEMOURS & CO., E. I. April 5, 1938, No. 10471. Convention date, April 5, 1937. [Class 2 (iii)] An anthragninone vat dyestuff of the formula is manufactured by interacting one molecular proportion. of 1:5-diaminoanthraquinone with two of 1-chloro-5-benzoylaminoanthraquinone, or one of 1:5-dichloroanthraquinone with two of 1-amino-5-benzoylaminoanthraquinone, and converting the resulting dibenzoylaminotrianthrimide to the carbazole by treating it with anhydrous aluminium chloride, e.g., in the presence of nitrobenzene, and then with an oxidizing agent, e.g., a bichromate in dilute sulphuric acid, or an alkaline hypochlorite solution. The interaction of the starting materials may be effected by heating them together in an inert organic solvent, e.g., nitrobenzene (in which case the aluminium chloride treatment may be effected without isolation of the anthrimide), pyridine or trichlorobenzene, in the presence of a copper salt, e.g., cuprous or cuproic chloride, as catalyst, and of an acidbinding agent, e.g., sodium carbonate or sodium acetate. The product dyes and prints cotton and other cellulosic textile materials, orange shades. Specifications 461,432 and 497,971 are referred to.
GB1047138A 1937-04-05 1938-04-05 Manufacture of a vat dyestuff Expired GB513281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US513281XA true 1937-04-05 1937-04-05

Publications (1)

Publication Number Publication Date
GB513281A true GB513281A (en) 1939-10-09

Family

ID=21970628

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1047138A Expired GB513281A (en) 1937-04-05 1938-04-05 Manufacture of a vat dyestuff

Country Status (1)

Country Link
GB (1) GB513281A (en)

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