http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101671270-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d0df7ac711be29a8d1c004b51eb43cfe |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-06 |
| filingDate | 2008-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ca2fc9c5b6f19104bfc4e40ce29712f0 |
| publicationDate | 2013-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101671270-B |
| titleOfInvention | Method for synthesizing cyanoacetylene derivatives |
| abstract | The invention discloses a method for synthesizing cyanoacetylene derivatives. The prior preparation method has high production cost and low yield, and is not suitable for industrial production. The method comprises that: in the presence of a dehydrating agent, organic formic acid generates organic formyl chloride; in the presence of Lewis acid and organic alkali, the organic formyl chloride is reacted with ethyl cyanoacetate to generate alpha-cyano-beta-carbonyl ethyl propionate compounds; in the presence of chlorinating agent and organic alkali, the alpha-cyano-beta-carbonyl ethyl propionate compounds are subjected to chlorination reaction to generate alpha-cyano-beta-chloroacrylate ethyl ester compounds; in the presence of inorganic alkali and lower alcohol solution, the alpha-cyano-beta-chloroacrylate ethyl ester compounds are hydrolyzed to generate alpha-cyano-beta-chloroacrylate compounds; and in the presence of organic alkali, the alpha-cyano-beta-chloroacrylate compounds are subjected to decarboxylation and dehalogenation elimination reaction to generate the cyanoacetylene derivatives. The whole process operation is simple and convenient, the post treatment is simple and the yield is high, so the method is quite suitable for industrialized production. |
| priorityDate | 2008-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 116.