http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111484427-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_45050744e0b65b272a5aec65f6062304 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-24 |
| filingDate | 2020-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a84ad454111f56b3ac8fc9a78859acb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_96c3b495a6274685a720e0f477ae55a1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_567d721e1a56058709e948eba5bb84c0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c1debcb5c76cb72301196c1ef9e9ef96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff94faa0b1fdc3ee64cd30f70d9193eb |
| publicationDate | 2020-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111484427-A |
| titleOfInvention | Preparation method of high-purity 1, 4-bis [ bis (2-cyanoethyl) amino ] butane |
| abstract | The invention provides a preparation method of high-purity 1, 4-bis [ bis (2-cyanoethyl) amino ] butane, which takes 1, 4-butanediamine and acrylonitrile as raw materials, takes water as a solvent, and is prepared by reaction, filtration, washing and drying, wherein the molar ratio of the 1, 4-butanediamine to the acrylonitrile is 1, 4-butanediamine: acrylonitrile is 1: 4.1-4.3; the amount of the reaction solvent water is 1, 4-butanediamine in a weight volume ratio of g/ml: water accounts for 1: 8-30; the reaction temperature is 35-43 ℃; the technical scheme of the invention reduces the feeding dosage of acrylonitrile, the molar ratio of the acrylonitrile to the theoretical value is slightly higher than 1:4, the product can be separated out along with the reaction process at a proper temperature, and the product is obtained by filtering and washing after the reaction is finished; a small amount of impurities in the product are removed by washing, recrystallization is not needed, and the post-treatment process is simple. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115073321-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115073321-A |
| priorityDate | 2020-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.