GB1357955A - Process for the manufacture of anthraquinone compounds - Google Patents
Process for the manufacture of anthraquinone compoundsInfo
- Publication number
- GB1357955A GB1357955A GB1771471A GB1771471A GB1357955A GB 1357955 A GB1357955 A GB 1357955A GB 1771471 A GB1771471 A GB 1771471A GB 1771471 A GB1771471 A GB 1771471A GB 1357955 A GB1357955 A GB 1357955A
- Authority
- GB
- United Kingdom
- Prior art keywords
- quinizarin
- manufacture
- anthraquinone compounds
- dichloroquinizarin
- boro
- 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
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
- C09B1/10—Dyes containing halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C46/00—Preparation of quinones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Abstract
1357955 Dichloroquinizarin; quinizarin di(borocarboxylates) IMPERIAL CHEMICAL INDUSTRIES Ltd 10 May 1972 [28 May 1971] 17714/71 Headings C2C and C2B 5,8-Dichloroquinizarin is prepared by reacting a quinizarin di(boro C 1-4 alkyl carboxylate) with chlorine in oleum and subsequently hydrolysing off the boron-containing groups. Quinizarin di(boro C 1-4 alkyl carboxylates) are prepared by adding boric acid to the appropriate acid anhydride and then adding quinizarin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1771471A GB1357955A (en) | 1971-05-28 | 1971-05-28 | Process for the manufacture of anthraquinone compounds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1771471A GB1357955A (en) | 1971-05-28 | 1971-05-28 | Process for the manufacture of anthraquinone compounds |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1357955A true GB1357955A (en) | 1974-06-26 |
Family
ID=10099929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1771471A Expired GB1357955A (en) | 1971-05-28 | 1971-05-28 | Process for the manufacture of anthraquinone compounds |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1357955A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0038777A1 (en) * | 1980-04-22 | 1981-10-28 | Ciba-Geigy Ag | Process for the preparation of OH or chloro derivatives of quinizarine bisubstituted in position 5 and 8 |
-
1971
- 1971-05-28 GB GB1771471A patent/GB1357955A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0038777A1 (en) * | 1980-04-22 | 1981-10-28 | Ciba-Geigy Ag | Process for the preparation of OH or chloro derivatives of quinizarine bisubstituted in position 5 and 8 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |