| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ecde08b86ab7c9b49cd8213226e8306b |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C233-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D251-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D251-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D251-16 |
| filingDate |
1985-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1986-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6a91a8668a5f02f038bde6990e6ce2b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2326b5562b4ea61b7202d2e6550bffc1 |
| publicationDate |
1986-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4587337-A |
| titleOfInvention |
Process for the preparation of 2-amino-s-triazines |
| abstract |
The present invention relates to a process for the preparation of 2-amino-s-triazines in three stages. In the first stage nitriles, alcohols and hydrogen chloride are reacted to form the corresponding imido-ester hydrochlorides. In the second stage, the imido-ester hydrochlorides are reacted with cyanamide in the aqueous phase to form the N-cyanimido-esters, which comprises carrying out the first stage in the presence of acetic acid esters and the second stage in an aqueous solution which has been brought to a pH value of 5-8 by addition of bases, and reacting the N-cyanimido-esters with O-alkylisourea, S-alkylisothiourea, guanidine or amidine salts in the presence of a base in the third stage. The 2-amino-s-triazines can be prepared in a high purity and with good yields in this manner. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110256295-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0470050-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102942505-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110256294-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8138350-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5075443-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110305040-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010048646-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105152976-A |
| priorityDate |
1984-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |