http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0477471-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D487-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-38 |
| filingDate | 1990-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e9f0f4829f8556d0c21de842ff3826f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_090cba802df019d7a79130c76d437e48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a493eb76ec60015f26c30d245e033a5 |
| publicationDate | 1992-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0477471-A |
| titleOfInvention | Production of 5-amino-1h-pyrazole compound |
| abstract | PURPOSE: To advantageously obtain the subject compound that is a synthetic intermediate for 1H-pyrazoloazole compounds which are color photographic couplers by subjecting inexpensive and readily available 3-iminopyrazolidine compound as a raw material to desulfinating reaction. n CONSTITUTION: A 3-iminopyrazolidine compound expressed by formula I (R 1 is alkyl or aryl; R 2 is alkyl or aryl) is used as a starting raw material and subjected to desulfinating reaction in the presence of a base, preferably metallic alkoxides such as sodium methoxide, preferably in water or an alcoholic solvent (especially in the alcoholic solvent) at 50-100°C, especially 60-90°C to afford a compound expressed by formula II. Furthermore, the starting compound expressed by formula I is synthesized by reacting a compound expressed by formula III with hydrazine in the presence of an organic acid or a hydrohalogenic acid and sulfinating the resultant compound. n COPYRIGHT: (C)1992,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6387136-B1 |
| priorityDate | 1990-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.