http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-655007-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14f86e164bb6ab1032c519b42ff81a64 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-58 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-58 |
| filingDate | 1948-09-29^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1951-07-04^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-655007-A |
| titleOfInvention | Heterocyclic couplers for diazotype photoprinting material |
| abstract | 1 - a - Naphthyl - 5 - pyrazolone - 3 - carboxylic acid is prepared by reacting a -naphthylhydrazine hydrochloride with ethyl oxalacetate in aqueous acetic acid, adding sodium hydroxide to effect ring closure, and acidifying. 1-b -Naphthyl - 5 - pyrazolone - 3 - carboxylic acid and 1-o-tolyl-5-pyrazolone-3-carboxylic acid are similarly prepared. Specification 210,862, [Class 98 (ii)], is referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2196141-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5407777-A |
| priorityDate | 1947-10-10^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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