http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-517674-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b04f5b6a02051c94d6eaf190b751ed2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-48 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-48 |
| filingDate | 1938-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1940-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-517674-A |
| titleOfInvention | Manufacture of 2-chloro (or bromo)-4 (or 6)-nitro-aminobenzene-6 (or 4)-sulphonic acid |
| abstract | 517,674. Halogenated nitraniline sulphonic acids. I.G. FARBENINDUSTRIE AKT.-GES. Aug. 3, 1938, No. 22944. Convention date, Nov. 20, 1937. [Class 2 (iii)] 2 - Chloro (or bromo) - 4 (or 6) - nitro - 1 - aminobenzene - 6 (or 4) - sulphonic acid' is prepared by the action of chlorine or bromine on 4 (or 6) - nitro - 1 - aminobenzene - 6 (or 4) - sulphonic acid or a salt thereof. The reaction is conducted in water, or an aqueous salt solution or in an inert organic solvent, at ordiriary or reduced temperature. In the examples ammonium (or sodium) - 4 - nitro - 1 - aminobenzene - 6 - sulphonate with bromine and chlorine give 2-bromo- and 2-chloro-4- nitro - 1 - aminobenzene -.6 - sulphonate respectively, and sodium - 6 - nitro - 1 - aminobenzene - 4 - sulphonate with bromine gives 2 - bromo - 6 - nitro - 1 - aminobenzene - 4 - sulphonate. The products are useful as intermediates for azo-dyestuffs. |
| priorityDate | 1937-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.