http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-325860-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3b9f373878f16dc291ff597162e9b344 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-86 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-86 |
| filingDate | 1966-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1967-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-325860-A1 |
| titleOfInvention | PROCEDURE FOR THE PREPARATION OF NEW CETO-ACIDS. |
| abstract | Process for the preparation of new keto-acids of the following general formula: ** (See formula) ** where R = ** (See formula) ** and the keto-butyric chain is preferably inserted in position 4 in the benzofuran derivatives and the 2,3-dihydro-benzofuran derivatives, and preferably in the 5-position in the 2-methyl-coumarane, characterized in that, to obtain the products I and II, the corresponding methoxy-benzofurans and the 2-methyl-coumarane are reacted with succinic anhydride in a solvent, in the presence of AlCl 3, SnCl 4 or one of the usual catalysts of the reaction of Friedel-Crafts; or with the monoesters of succinic acid chloride RO-OO-CH2-CH2-COCl (R = alkyl) in a solvent and in the presence of AlCl 3, SnCl 4 or one of the usual Friedel-Crafts reaction catalysts, and finally the ester formed is saponified. (Machine-translation by Google Translate, not legally binding) |
| priorityDate | 1965-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.