http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04261160-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D239-545 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D239-58 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-54 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-545 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-52 |
| filingDate | 1991-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_995d5fa6a4be389ea9ed97aa7e11ead7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_abbfa96ef6e74ad1e5602dbb3f718bc5 |
| publicationDate | 1992-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H04261160-A |
| titleOfInvention | Production of aminopyrimidine |
| abstract | PURPOSE: To easily obtain a high purity compd. useful as a synthesis intermediate of sulfonylurea as a herbicide with a high yield by allowing pyrimidine to react with propane diimidate and cyanamide at a pH in a wide range. n CONSTITUTION: A compd. represented by formula I (where each of R 1 and R 2 is a 1-4 C alkyl, a 1-4 C alkoxy, etc., and each of X and Y is O or S) is allowed to react with propane diimidate represented by formula II or its salt and cyanamide represented by the formula NH 2 -CN at pH 7-14 and -20 to +200°C in an inert solvent such as water-toluene in the presence of a base such as potassium hydrogencarbonate to obtain the objective aminopyrimidines. The base and cyanamide are used by at least 1 equiv. and at least 1 mol per 1 mol or the compd. represented by the formula II, respectively. n COPYRIGHT: (C)1992,JPO |
| priorityDate | 1990-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.