http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2583135-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_599f2f570b3a989fa9076f8465318ddc |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-19 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-19 |
| filingDate | 2019-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af75201e0d143c50d5618d39a4fa87ad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f996a257d814b07ab40da141ae0118c7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c5ebdf95a08179cf3d8c0753f799289f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00433384b7518aefcd0dc28a271b029f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51ea81922736f1dc9c8eeab197e11f9c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_10e0d008d2136d900534cd0863392fa7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23bc4760a470423a95defd9a5e923e3e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_198979ad0d8ca6bdd093bab14853af2d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb8aff2bef78ad09a46c4d38d863dccf |
| publicationDate | 2020-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2583135-A |
| titleOfInvention | Process for preparing cyanoacetates |
| abstract | A process for the preparation of a cyanoacetate, comprising contacting a cyanoacetamide with an alcohol, in the presence of a mineral acid; and optionally separating therefrom the so formed cyanoacetate. Preferably the separation step should yield the cyanoacetate substantially free from cyanoacetamide, alcohol, mineral acid and by-products. The esterification of cyanoacetamides provides cyanoacetates in high yield and using readily available, inexpensive starting materials. Preferably, the cyanoacetate is a C1-20 alkyl, C6-20 aryl, C7-20 alkaryl or C7-20 aralkyl cyanoacetate, any of which may be substituted with hydroxyl or alkyl ether groups. The C1-20 alkyl cyanoacetate may be methyl cyanoacetate, ethyl cyanoacetate, propyl cyanoacetates, butyl cyanoacetates, pentyl cyanoacetates, octyl cyanoacetates, alkoxy ether alkyl cyanoacetates, allyl cyanoacetate and combinations thereof. The C6-20 aryl cyanoacetate may be phenyl cyanoacetate. The C7-20 aralkyl cyanoacetate may be phenethyl cyanoacetate, benzyl cyanoacetate or toluyl cyanoacetate. Preferably, the alcohol is selected from methanol, ethanol, propanols, butanols, pentanols, hexanols, octanols or those defined in the claims. Preferably the mineral acid is sulfuric acid, sulfurous acid, sulfonic acid, phosphoric acid, phosphorous acid, phosphonic acid, hydrochloric acid or hydrobromic acid. Exemplified is the reaction of cyanoacetamide with ethanol in the presence of sulfuric acid to give ethyl cyanoacetate. |
| priorityDate | 2019-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 134.