GB920636A - New nitro-derivatives of 1:4:5:8-naphthoylene-dibenzimidazole and process for their manufacture - Google Patents
New nitro-derivatives of 1:4:5:8-naphthoylene-dibenzimidazole and process for their manufactureInfo
- Publication number
- GB920636A GB920636A GB1165459A GB1165459A GB920636A GB 920636 A GB920636 A GB 920636A GB 1165459 A GB1165459 A GB 1165459A GB 1165459 A GB1165459 A GB 1165459A GB 920636 A GB920636 A GB 920636A
- Authority
- GB
- United Kingdom
- Prior art keywords
- naphthoylene
- dibenzimidazole
- derivatives
- manufacture
- new nitro
- 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
- C09B57/00—Other synthetic dyes of known constitution
- C09B57/12—Perinones, i.e. naphthoylene-aryl-imidazoles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Developing Agents For Electrophotography (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention comprises mono-nitro derivatives of 1:4:5:8-naphthoylene-dibenzimidazole which consist substantially of cis- or transcompounds of the formula:- <FORM:0920636/IV(a)/1> where X is the radical:- <FORM:0920636/IV(a)/2> The pigments are made by nitrating the cis- or transisomers of 1:4:5:8-naphthoylene-dibenzimidazole with nitric acid in sulphuric acid, oleum or chlorosulphonic acid. Specifications 256,989, 341,357 and 369,604 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF25437A DE1104093B (en) | 1958-04-05 | 1958-04-05 | Process for the preparation of uniform mono- and dinitro-derivatives of 1,4,5,8-naphthoylenedibenzimidazole |
Publications (1)
Publication Number | Publication Date |
---|---|
GB920636A true GB920636A (en) | 1963-03-13 |
Family
ID=7091636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1165459A Expired GB920636A (en) | 1958-04-05 | 1959-04-06 | New nitro-derivatives of 1:4:5:8-naphthoylene-dibenzimidazole and process for their manufacture |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH391155A (en) |
DE (1) | DE1104093B (en) |
GB (1) | GB920636A (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE430632C (en) * | 1924-07-22 | 1926-06-19 | J G Farbenindustrie Akt Ges | Process for the preparation of Kuepen dyes |
DE513690C (en) * | 1928-10-23 | 1930-12-02 | I G Farbenindustrie Akt Ges | Process for the preparation of nitrogen-containing naphthoylenediarylimidazoles |
-
1958
- 1958-04-05 DE DEF25437A patent/DE1104093B/en active Pending
-
1959
- 1959-04-03 CH CH7153059A patent/CH391155A/en unknown
- 1959-04-06 GB GB1165459A patent/GB920636A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1104093B (en) | 1961-04-06 |
CH391155A (en) | 1965-04-30 |
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