http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0117337-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e899199238cd97bdebfa84869ece733b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-3813 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-38 |
| filingDate | 1983-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6bcbe031b5f86b05ace93cfc69664b56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d36141e4658265d2c95fe9d1e8aef392 |
| publicationDate | 1984-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0117337-A1 |
| titleOfInvention | Method for preparation of salts of N-phosphonomethylglycine |
| abstract | A process for the preparation of sulfonium or sulfoxonium salts of N-phosphonomethylglycine which comprises:(1) reacting N-phosphonomethylglycine, a compound of the formulawith a compound selected from the group consisting of those having the formulawherein R<sub>1</sub>, R<sub>2</sub> and R<sub>3</sub> are the same or different and are alkyl groups having from 1 to 4 carbon atoms or aromatic alkyl groups, X is chloride, bromide or iodide and Z is an electron pair or oxygen, orwherein R" R<sub>2</sub> and R<sub>3</sub> are the same of different and are alkyl groups having from 1 to 4 carbon atoms and are the same as in (a) above, R<sub>4</sub> is an alkyl group having from 1 to 12 carbon atoms, aromatic or aromatic alkyl groups, X is chlorine or iodine, and Y is nitrogen or phosphorus, said reaction being conducted in the presence of a trialkylamine of the formulawherein each R is the same or different and is an alkyl group ranging from 4 to 13 carbon atoms, all in the presence of water and a polar functional organic solvent which is immiscible in water, said reaction being conducted at a temperature and for a sufficient period of time to cause completion of the reaction, and(2) isolating the end product by phase separation.The process is simpler and less expensive than other processes. |
| priorityDate | 1983-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 76.