http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7692020-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-81 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-803 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-81 |
| filingDate | 2006-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2010-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b735884e87fc7cebfead5fc0d06906f7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d3cc2e507a715b7a8714de7095dddde5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d8d099268ebf58da6d5fcce7225582b9 |
| publicationDate | 2010-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-7692020-B2 |
| titleOfInvention | Process for the preparation of pyridylcarboxylic amides and esters |
| abstract | The invention relates to a process for the preparation of pyridylcarboxylic amides and esters I, Formula (I) wherein Hal, X and R 1 have the meanings given in claim 1 , which comprises the following steps: (a) heating a mixture consisting essentially of trichloromethylpyridine II, Formula (II), wherein Hal has the meaning given, and 1.0 to 1.5 equivalents of concentrated sulfuric acid, characterized in that the trichloromethylpyridine II in a liquid form is added to the concentrated sulfuric acid at a temperature from 110° C. to 160° C.; and (b) reacting the intermediate product obtained in step (a) with an amine or alcohol III, HXR 1 , wherein X and R 1 have the meaning given, optionally in the presence of a solvent and/or a base. |
| priorityDate | 2005-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 391.