| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-63
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C- |
| filingDate |
1981-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cad21b912f9f61a9b548fedbd380d08a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_21691f2a80838bc25d11c4024913e604 |
| publicationDate |
1981-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0037474-A1 |
| titleOfInvention |
Process for the preparation of 1-acetoxy-3-chloro-pentanone-4 |
| abstract |
Improved process for the preparation of the 1-acetoxy-3-chloropentan-4-one (I), which is important as a vitamin B 1 intermediate, starting from a-chloro-a-aceto-y-butyrolactone (II). I is advantageously obtained if 11 is reacted in the presence of hydrogen chloride at 70 to 100 ° C. for 1 to 8 hours with 0.8 to 1.2 moles of water and 1 to 2 moles of acetic acid per mole of II and the reaction mixture is then worked up by distillation . |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0234586-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0234586-A2 |
| priorityDate |
1980-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |