http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1200463-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_16890954fa97fa1ea88523e23b283152 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B62-343 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B62-36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B62-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B62-343 |
| filingDate | 1967-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae812d01ac97a769f5f139e4f974d416 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ee22cd2f6788571f1bfa402f07b6fb4e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec4564cd40ac7ebc562b05ce7f88681f |
| publicationDate | 1970-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1200463-A |
| titleOfInvention | Improvements in and relating to new reactive dyestuffs |
| abstract | 1,200,463. Dyestuff intermediates. UGINE KUHLMANN. 17 Oct., 1967 [17 Oct., 1966], No. 47145/67. Addition to 1,122,389. Heading C2C. [Also in Division C4] 2 - Hydroxy - 3 - nitro - pyridine - 5 - carboxylie acid is obtained by nitrating 2 - hydroxy - pyridine - 5 - carbonyl acid with a nitric acid sulphuric acid mixture first at 20-25‹ C. and then 75‹ C. The mass is cooled, poured into ice, stirred, filtered under vacuum wash with ice water and dried, m.p. 274-276‹ C. The product is then reacted with a mixture of phosphorus oxychloride and phosphorus pentachloride with heating under reflux. The reaction mixture is fractionally distilled to give a fraction at 170- 175‹ C. a mobile pale yellow liquid which is 2 - chloro - 3 - nitro - 5 - chloroformylpyridine. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4039523-A |
| priorityDate | 1966-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.