| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-61 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B37-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-61 |
| filingDate |
1996-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03a35a926ab1cc31272d039cfd6517bd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc00c6a5110832e0345d1bfdfa0e6c16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bbdc3122df890e534db7d193c2b92b15
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c240808be835c7b48d1f74a5f21ab10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e0368e550982c720074b572099b07895 |
| publicationDate |
2000-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0722934-B1 |
| titleOfInvention |
Process for the preparation of 5-substituted-2-chloropyridines |
| abstract |
Prepn. of 5-substd. 2-chloropyridines of formula (I) comprises (1) reacting acetenamides of formula (II) with Vilsmeier reagent (III), which is prepd. by reacting formamides of formula (IV) with a chlorinating agent (V); and (2) removing excess (V) after reaction by distn. or addn. of dialkylformamide: R = opt. substd. (ar)alkyl; R1 = 1-4C alkyl or aryl-(1-4C)-alkyl; R2,R3 = linear, branched or cyclic 4-8C alkyl. |
| priorityDate |
1995-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |