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GB263845A - Manufacture of benzanthrone derivatives - Google Patents

Manufacture of benzanthrone derivatives

Info

Publication number
GB263845A
GB263845A GB32841/26A GB3284126A GB263845A GB 263845 A GB263845 A GB 263845A GB 32841/26 A GB32841/26 A GB 32841/26A GB 3284126 A GB3284126 A GB 3284126A GB 263845 A GB263845 A GB 263845A
Authority
GB
United Kingdom
Prior art keywords
oxy
acid
oxybenzanthrone
aroyloxybenzanthrones
methylated
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
GB32841/26A
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 GB263845A publication Critical patent/GB263845A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C50/00—Quinones
    • C07C50/26—Quinones containing groups having oxygen atoms singly bound to carbon atoms
    • C07C50/36—Quinones containing groups having oxygen atoms singly bound to carbon atoms the quinoid structure being part of a condensed ring system having four or more rings
    • 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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/50—Dibenzopyrenequinones

Landscapes

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

Abstract

263,845. I. G. Farbenindustrie Akt.- Ges. Dec. 30, 1925, [Convention date]. Addition to 248,791. Oxy and alkyloxy-dibenzpyrenequinones.-Bz2- Aroyloxybenzanthrones are treated with acid condensing agents. The oxydibenzpyrenequinones so obtained dye cotton from the vat in reddish-brown shades not fast to acid; by alkylation they yield products which dye in fast yellow shades. According to examples (1) Bz 2-benzoyloxybenzanthrone is heated with a mixture of aluminium and sodium chlorides and the 1-oxy- 3:4:8: 9-dibenzpyrenequinone methylated or ethylated with p-toluenesulphonic methyl or ethyl ester in nitrobenzene; (2) the p-taluic ester of Bz2-oxybenzanthrone is similarly treated and the 1 - oxy-3 : 4-methylbenz - 8: 9-benzpyrenequinone methylated. Bz2-Benzoyl and p-toluoyl-oxybenzanthrones are obtained from Bz2-oxybenzanthrone bv benzoylation by the Schotten-Baumann method, and by heating with p-toluic acid chloride respectively. The Specification as open to inspection under Sect. 91 (3) (a) refers to the treatment with acid condensing agents of substitution products of Bz2- aroyloxybenzanthrones which possess free peripositions in the naphthalene nucleus. This subject-matter does not appear in the Specification as accepted.
GB32841/26A 1925-12-30 1926-12-29 Manufacture of benzanthrone derivatives Expired GB263845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE263845X 1925-12-30

Publications (1)

Publication Number Publication Date
GB263845A true GB263845A (en) 1927-09-29

Family

ID=5986440

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32841/26A Expired GB263845A (en) 1925-12-30 1926-12-29 Manufacture of benzanthrone derivatives

Country Status (1)

Country Link
GB (1) GB263845A (en)

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