FR2213267A1 - Pure 1-nitro anthraquinone from mixts with dinitro anthraquinones - by selectively solubilising them in organic solvents with catalyst and base - Google Patents
Pure 1-nitro anthraquinone from mixts with dinitro anthraquinones - by selectively solubilising them in organic solvents with catalyst and baseInfo
- Publication number
- FR2213267A1 FR2213267A1 FR7327384A FR7327384A FR2213267A1 FR 2213267 A1 FR2213267 A1 FR 2213267A1 FR 7327384 A FR7327384 A FR 7327384A FR 7327384 A FR7327384 A FR 7327384A FR 2213267 A1 FR2213267 A1 FR 2213267A1
- Authority
- FR
- France
- Prior art keywords
- pure
- base
- organic solvents
- mixts
- anthraquinones
- 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.)
- Granted
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Pure 1-nitroanthraquinone (I) is prepd. from mixtures of nitroanthraquinones by treatment of (40-250 degrees C pref. 70-150 degrees C) in organic solvents (N,N-dimethylformamide) contg. is not >10 wt.% water in presence of 0.1-10 wt.% of an inducer liberating nitrite, chloride, bromide etc., by bases (alkali carbonates, amines e.g. trimethylamine) or cpds. contg. >=1 -CH2-group activated by carbonyl, (diethylketone). Amt. of base or carbonyl cpd. is 0.3-3 moles/mole dinitroanthraquinone in the mixt. (I) is an inter for dye mfr.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2237904A DE2237904C3 (en) | 1972-08-02 | 1972-08-02 | Process for the preparation of pure 1-nitroanthraquinone |
DE2253276A DE2253276C2 (en) | 1972-10-31 | 1972-10-31 | Process for the preparation of pure 1-nitroanthraquinone |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2213267A1 true FR2213267A1 (en) | 1974-08-02 |
FR2213267B1 FR2213267B1 (en) | 1977-09-23 |
Family
ID=25763645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7327384A Granted FR2213267A1 (en) | 1972-08-02 | 1973-07-26 | Pure 1-nitro anthraquinone from mixts with dinitro anthraquinones - by selectively solubilising them in organic solvents with catalyst and base |
Country Status (5)
Country | Link |
---|---|
DD (1) | DD108738A5 (en) |
FR (1) | FR2213267A1 (en) |
IT (1) | IT990108B (en) |
PL (1) | PL89446B1 (en) |
SU (1) | SU544365A3 (en) |
-
1973
- 1973-07-26 FR FR7327384A patent/FR2213267A1/en active Granted
- 1973-07-31 PL PL16442073A patent/PL89446B1/pl unknown
- 1973-07-31 SU SU1955920A patent/SU544365A3/en active
- 1973-08-01 IT IT5177573A patent/IT990108B/en active
- 1973-08-01 DD DD17266173A patent/DD108738A5/xx unknown
Non-Patent Citations (1)
Title |
---|
NEANT * |
Also Published As
Publication number | Publication date |
---|---|
DD108738A5 (en) | 1974-10-05 |
SU544365A3 (en) | 1977-01-25 |
PL89446B1 (en) | 1976-11-30 |
FR2213267B1 (en) | 1977-09-23 |
IT990108B (en) | 1975-06-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO742701L (en) | Novel N-substituted β-menthane-3-carboxamides for use as an agent to induce a physiological cooling effect on the skin or mucous membranes. | |
NL144367B (en) | LIQUID RING COMPRESSOR OR LIQUID RING PUMP. | |
ES422060A2 (en) | IMPROVEMENTS INTRODUCED IN THE PURPOSE OF THE MAIN PATENT 394,577 | |
FI52245C (en) | Liquid ring gas pump equipment. | |
FR2213267A1 (en) | Pure 1-nitro anthraquinone from mixts with dinitro anthraquinones - by selectively solubilising them in organic solvents with catalyst and base | |
BE774004A (en) | PRESERVATION OF AQUEOUS DISPERSIONS WITH BROMOACETAMIDES | |
NL167225B (en) | LIQUID RING COMPRESSOR. | |
FR1339456A (en) | Improvements in the stabilization of unstable materials, in particular based on polyvinyl chloride | |
IT939093B (en) | CARBON DIOXIDE ELECTROCHEMICAL DETECTOR | |
BE822001A (en) | BINARY DECODER / ONE-OF-N-N USING METAL-OXIDE-SEMI-SEMI-SEMI-CONDUCTIVE (MOS) DEVICES | |
BE764868A (en) | WATER HARDNESS STABILIZER ( | |
DK131079B (en) | Ectoparasiticidal agent containing acylated arylhydrazino-2-imidazolines. | |
Sato | EFFECT OF CHLORINATION OF SEA WATER ON THE CORROSION OF CONDENSER TUBES | |
FR2110329A1 (en) | 6-phenyl-pyridazin-3-one derivs - hypotensives | |
USD209618S (en) | Record jacket support clip | |
IT969684B (en) | CARBON DIOXIDE DETECTOR | |
USD225537S (en) | Altar cross or the like | |
GB1308165A (en) | Reverse osmosis apparatus | |
USD232071S (en) | ||
FUKAI et al. | AP BRONZE TUBES"- CONDENSER TUBES OF NEW ANTI-CORROSION BRONZE AGAINST POLLUTED SEA WATER | |
GB1177869A (en) | Process for the Manufacture of 1-Bromo-4-Acylaminoanthraquinones | |
GB1328574A (en) | Chlorination process | |
BE608388A (en) | Fire extinguisher vehicle with extinguishing water tank. | |
GB945699A (en) | Anthraquinone dyestuff mixtures | |
BUTLER | Measurement of the interfacial tensions between mercury and benzene and between mercury and water using pendent drop method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |