GB305488A - The manufacture of vat dyestuffs of the anthraquinone series - Google Patents

The manufacture of vat dyestuffs of the anthraquinone series

Info

Publication number
GB305488A
GB305488A GB3763/29A GB376329A GB305488A GB 305488 A GB305488 A GB 305488A GB 3763/29 A GB3763/29 A GB 3763/29A GB 376329 A GB376329 A GB 376329A GB 305488 A GB305488 A GB 305488A
Authority
GB
United Kingdom
Prior art keywords
phenanthridone
dyes
phthalic anhydride
product
phthaloylphenanthridones
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
GB3763/29A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB305488A publication Critical patent/GB305488A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/32—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups
    • C09B1/34—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated

Abstract

305,488. I. G. Farbenindustrie Akt.- Ges. Feb. 3, 1928, [Convention date]. Phthaloylphenanthridones are obtained by treating phenanthridone with phthalic anhydride in the presence of an aluminium halogenide such as aluminium chloride. The products are apparently monophthaloylphenanthridones and are vat dyes and/or intermediates for the production of dyes. In an example, phenanthridone is melted with phthalic anhydride and aluminium chloride ; the product, after boiling with dilute hydrochloric acid and vatting with alkaline hydrosulphite, is separated into two isomeric phthaloylphenanthridones by means of nitrobenzene or trichlorbenzene. The more soluble monophthaloylphenanthridone obtained dyes cotton from a reddish-brown vat . in fast. yellow shades, while the product difficultly soluble in trichlorbenzene dyes cotton a paler yellow. Specification 8704/11 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) refers to the treatment of derivatives and substitution products of phenanthridone with phthalic anhydride or a derivative or substitution product thereof in presence of a condensing agent. This subject-matter does not appear in the Specification as accepted.
GB3763/29A 1928-02-03 1929-02-04 The manufacture of vat dyestuffs of the anthraquinone series Expired GB305488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE305488X 1928-02-03

Publications (1)

Publication Number Publication Date
GB305488A true GB305488A (en) 1930-05-05

Family

ID=6120821

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3763/29A Expired GB305488A (en) 1928-02-03 1929-02-04 The manufacture of vat dyestuffs of the anthraquinone series

Country Status (1)

Country Link
GB (1) GB305488A (en)

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