http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BE-1026010-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_868d08892ece575339440d29de224775 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D265-33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C237-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-02 |
| filingDate | 2018-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ff343886f89b39436685ac83af797bf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_275e3f957b07d137f7044587444b5808 |
| publicationDate | 2019-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | BE-1026010-B1 |
| titleOfInvention | METHOD FOR SYNTHETIZING TETRA-ALKYLNITRILO-ACETIC ACID DIACETAMIDE COMPOUND |
| abstract | It is an object of the present invention to provide a method for synthesizing a tetraalkylnitriloacetic acid diacetamide compound that can be used as an extractant for extracting a valuable metal such as a rare metal or a noble metal, or a highly toxic, harmful metal, which method permits simple, safe and inexpensive production of the tetraalkylnitriloacetic acid diacetamide compound without the use of a hazardous chemical or an expensive chemical. In the synthesis of a compound represented by the general formula (1) or a salt thereof, nitrilo-tri-acetic acid as its starting material is reacted with a dehydrating agent to allow dehydration, and the resulting nitrilo-tri-acetic anhydride is reacted with a dialkylamine to obtain a reaction intermediate. The reaction intermediate is then reacted in a similar manner with a dehydrating agent to allow dehydration, and the resulting reaction intermediate anhydride is reacted with a dialkylamine to synthesize a tetraalkylnitriloacetic acid diacetamide compound. (R1) (R2) N (C = O) CH2 N (CH2 (COOH)) CH2 (C = O) N (R3) (R4) (1) In formula (1), R1, R2, R3, and R4 are represented independently for the same or a different hydrocarbon group, provided that the total number of carbon atoms in the hydrocarbon groups R1, R2, R3, and R4 is 8 to 64. |
| priorityDate | 2017-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.