http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02193974-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_13aa7b32ae00ed83af7dfaa0b6a1f7c2 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D401-00 |
| filingDate | 1989-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1a6789f1f4e3bea2d02feb9478edf06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc77009904bca55df23c63cce27a2c43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5bbce3e8e04ba85dd3a8a3ac33685a3e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_77abc676a3722d6ff6133d00c9cf3727 |
| publicationDate | 1990-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02193974-A |
| titleOfInvention | Production of pyrazole derivative |
| abstract | PURPOSE: To readily obtain a substituted carbamoyl pyrazole derivative having water-soluble group useful as an intermediate of dye for the photograph, etc., in high yield by using 3-position substituted pyrazole derivative protected at 5-position as a raw material and reacting with specific compound in the presence of condensation agent. n CONSTITUTION: 3-position substituted pyrazole derivative protected at 5-position expressed by formula I [R 1 is H, alkyl, aryl or hetero-ring group; R 2 is block (protect) group, e.g. benzoyl or methyl sulfonyl; M is H, metal atom such as alkaline earth metal] is reacted with a compound expressed by formula II (R 3 and R 4 are R 1 ; with the proviso that R 3 =R 4 ≠H) such as 2,5-disulfoaniline in non-protonic polar solvent and in the presence of condensation agent such as N,N'-dicyclohexyl carbodiimide to afford the aimed compound expressed by formula III (at least one of R 1 -R 4 has water-soluble group, e.g., sulfo or carboxy group and same in the compounds expressed by formula I and formula II) useful for medicine, agricultural chemical, coupler in photography and especially intermediate of dye for photograph as a compound expressed by formula IV. n COPYRIGHT: (C)1990,JPO&Japio |
| priorityDate | 1989-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.