GB1029448A - Process for the production of hydroxyl group-containing 1,4-dichloroanthraquinones - Google Patents

Process for the production of hydroxyl group-containing 1,4-dichloroanthraquinones

Info

Publication number
GB1029448A
GB1029448A GB994765A GB994765A GB1029448A GB 1029448 A GB1029448 A GB 1029448A GB 994765 A GB994765 A GB 994765A GB 994765 A GB994765 A GB 994765A GB 1029448 A GB1029448 A GB 1029448A
Authority
GB
United Kingdom
Prior art keywords
hydroxyl group
stands
dichloroanthraquinones
hydrogen atom
production
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
GB994765A
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1029448A publication Critical patent/GB1029448A/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
    • C09B1/02—Hydroxy-anthraquinones; Ethers or esters thereof
    • C09B1/06—Preparation from starting materials already containing the anthracene nucleus

Landscapes

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

Abstract

Hydroxyl group-containing 1,4 - dichloro-anthraquinones, are made by diazotizing a compound of the general formula:- <FORM:1029448/C4-C5/1> in which X stands for a hydrogen atom or a halogen atom, alkyl, alkoxy or hydroxyl radical, and Y stands for a hydrogen atom, a substituent of the type of X, or a cyano, carboxyl, sulphonic acid, sulphonamide, carbonamide or carboxylic acid ester group, and subsequently boiling the diazonium compound, preferably in dilute aqueous sulphuric acid of 50-80% concentration. Temperatures of 80 DEG to 150 DEG C. are required and the addition of small amounts of copper salts may be made.
GB994765A 1964-03-13 1965-03-09 Process for the production of hydroxyl group-containing 1,4-dichloroanthraquinones Expired GB1029448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0042301 1964-03-13

Publications (1)

Publication Number Publication Date
GB1029448A true GB1029448A (en) 1966-05-11

Family

ID=7099027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB994765A Expired GB1029448A (en) 1964-03-13 1965-03-09 Process for the production of hydroxyl group-containing 1,4-dichloroanthraquinones

Country Status (3)

Country Link
CH (1) CH439331A (en)
FR (1) FR1427422A (en)
GB (1) GB1029448A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD989863S1 (en) * 2021-04-29 2023-06-20 MyGift Enterprise, LLC Book rack

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672129A (en) * 1986-05-05 1987-06-09 Warner-Lambert Company Process for preparing substituted anthra[1,9-cd]pyrazol-6(2H)-ones

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD989863S1 (en) * 2021-04-29 2023-06-20 MyGift Enterprise, LLC Book rack

Also Published As

Publication number Publication date
FR1427422A (en) 1966-02-04
CH439331A (en) 1967-07-15

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