http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02138191-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a22da5b7dd6ed60a21538e5edb23e051 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-6584 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-3813 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6584 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-02 |
| filingDate | 1988-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_565b74b5bcea4691dc6ed27e4179c148 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_65b8b1d6e32c2996264ef2a7697680e9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67ecf7e5d5d18a2efbd3105648800ff9 |
| publicationDate | 1990-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02138191-A |
| titleOfInvention | Preparation of n-phosphonomethyl glycine |
| abstract | PURPOSE: To obtain a compound useful as herbicide simply in a high yield by a method in which N-phosphonomethyl-oxazolidone is hydrolyzed in water, by-produced CO 2 is removed, an alkali and a catalyst are added, and the hydrolyzate is oxidized. n CONSTITUTION: First, the aqueous solution of N-phosphonomethyl-2-oxazolidone is reacted to hydrolyzed the oxazolidone group and to produce CO 2 , and the reaction is continued until the oxazolidone is converted completely into N- phosphonomethyl ethanolamine or its cyclic internal ester (hereafter called hydrolyzate). Next, after by-produced CO 2 being removed, an acid in the phosphonomethyl group of the hydrolyzate is neutralized. An aqueous alkali in excess of at least one mole to the hydrolyzate and a catalyst selected from Cd, Cu, Zn, Pd, Pt, their salts, oxides, and hydroxides are added into the reaction system, the hydrolyzate is oxidized at 200-300°C, and the reaction mixture is acidified to obtain the objective intended compound. n COPYRIGHT: (C)1990,JPO |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7882957-B2 |
| priorityDate | 1986-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.