http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S56127360-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5736c85c1929ce4e9775e836a65d6c05 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D231-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N43-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-20 |
| filingDate | 1980-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_839fc0356f0f9802a04e529e768bf531 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72c31b48cf1d49bae84cfc3d18d3d979 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57a0e83a6670cc03b6f626c4dfcd174a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c059443ccef36b403d768f4f9b4c3fd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0609be89003b4d5001bebf456160922 |
| publicationDate | 1981-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S56127360-A |
| titleOfInvention | Preparation of 4-benzoyl-5-hydroxypyrazole compound |
| abstract | PURPOSE: To obtain the titled substance useful as herbicide or an intermediate therefor readily from an inexpensive raw material in high yield, by reacting a pyrazolone compound with a benzotrichloride compound, and hydrolyzing the resultant reaction product. n CONSTITUTION: A compound of formula I (R is H or lower alkyl) is reacted with a compound of formula II (X 1 and X 2 are H or halogen) to give a reaction product, which is then hydrolyzed to afford a compound of formula III or a salt thereof. The condensation reaction is carried out in the presence of a deacidifying agent or a catalyst, and a tertiary organic amine is preferred as the deacidifying agent in an amount of 1W3mol based on one mole compound of formula I. The hydrolysis is carried out by adding an aqueous alcoholic solution containing a basic substance to the reaction system at room temperature to 100°C subsequently without taking the reaction product out of the system. The total reaction time is usually 0.2W10hr. n COPYRIGHT: (C)1981,JPO&Japio |
| priorityDate | 1980-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID226834489 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID7367 |
Total number of triples: 18.