http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1268153-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fcfdf089db13e28933a31be7b2a0f5e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-68 |
| filingDate | 1970-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1972-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1268153-A |
| titleOfInvention | Method of preparing 2,3-dibromofuran |
| abstract | 1,268,153. 2,3-Dibromofuran. SOC. DE RECHERCHES INDUSTRIELLES. 19 June, 1970 [23 June, 1969], No. 29956/70. Heading C2C. 2,3-Dibromofuran is prepared by bromination of an ester of furoic acid, followed by saponification and decarboxylation. Decarboxylation is preferably effected by copper powder in quinoline at elevated temperatures. 2-Bromo-furan and 2,3,4-tribromofuran are obtained as by-products. Furoic acid ester starting materials are obtained by oxidation of furfural with potassium permanganate, followed by esterification. 3-Bromo-furan is prepared from 2,3-dibromofuran by reaction with methyl lithium. |
| priorityDate | 1969-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.