http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6156161-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2baf849d216e689ecc40ccc931a7a7bc |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D257-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-08 |
| filingDate | 1984-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e547371754d0ab23c3cfbf19a4bf528 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_54d813047819130569e3c31dc37175ea http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c3e3d38ea0ba08f34d3c06187b1c5813 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a4541a52f0a492055f7eef1708ad30e |
| publicationDate | 1986-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6156161-A |
| titleOfInvention | Preparation of 2-methyl-3-pyrazolidone |
| abstract | PURPOSE: To obtain the titled compound useful as a synthetic intermediate of penicillin, antiobesity agent, anti-enzymatic agent, etc., easily, in high yield, from an inexpensive raw material, by the hydrolytic cyclization of N-methyl, N'-β-cyanoethyl-hydrazine. n CONSTITUTION: The objective compound of formula II can be prepared by the hydrolytic cyclization of novel N-methyl, N'-β-cyanoethyl-hydrazine of formula I in the presence of water, using a mineral acid, preferably hydrochloric acid, sulfuric acid, nitric acid, etc., at the refluxing temperature of water. The starting compound of formula I can be produced by the hydrogenation of formaldehyde β-cyanoethylhydrazone, 1,4-di(β-cyanoethyl)hexahydro-1,2,4,5-tetrazine or their mixture. n COPYRIGHT: (C)1986,JPO&Japio |
| priorityDate | 1984-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.