http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AR-090172-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_173bc2c63b34988699010ba05e5b1376 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D231-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D231-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-12 |
| filingDate | 2013-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2014-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | AR-090172-A1 |
| titleOfInvention | PROCESS FOR THE PREPARATION OF CARBOXAMIDS |
| abstract | Claim 1: A process for preparing the compound of formula (1), wherein R¹ is hydrogen, halogen or C₁₋₆ alkyl; R² is hydrogen, halogen, C₁₋₆ alkyl, C₂₋₆ alkenyl, C₃₋₆ alkynyl, (C₃₋₆ cycloalkyl) - (C₃₋₆ alkynyl), halophenoxy, halophenyl- (C₃₋₆ alkynyl), C (C₁ alkyl ₋₄) = NO- (C₁₋₄ alkyl), C₁₋₆ haloalkyl, C₁₋₆ haloalkoxy, C₂₋₆ haloalkenyl or C₂₋₆ haloalkenyloxy; and R³ is hydrogen, halogen or C₁₋₆ alkyl; the process comprising a) adding a compound of formula (2), where R¹, R² and R³ have the meanings described for formula (1), in the presence of an inert organic solvent, to a mixture comprising an organic nitrite of formula: R⁴-ON = O, where R⁴ is C₁₋₈ alkyl, a compound of formula (3), and an inert organic solvent; b) reacting the resulting compound of formula (4), where R¹, R² and R³ have the meanings described for formula (1), with the O-methylhydroxylamine of formula: H₂N-O-CH₃, to obtain the compound of formula (5) where R¹, R² and R³ have the meanings that have been described for formula (1); c) reduce the compound of formula (5) to obtain the compound of formula (6) where R¹, R² and R³ have the meanings described for formula (1); d) and reacting the compound of formula (6) with a compound of formula (7), where R * is halogen, hydroxy or C₁₋₆ alkoxy, to obtain the compound of formula (1). |
| priorityDate | 2012-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 15.