http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-416093-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D491-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-15 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-107 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-136 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B57-00 |
| filingDate | 1973-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-416093-A1 |
| titleOfInvention | PROCEDURE FOR OBTAINING SPIROPYRANS. |
| abstract | Procedure for obtaining spiropyrans, of the formula **(See formula)** in which R1 represents hydrogen, an alkyl, cyanoalkyl, carboalkoxyalkyl or methoxyalkyl radical with 1 to 6 carbon atoms or a phenyl radical, R2 represents an alkyl radical with 1 to 4 carbon atoms, A means an optionally substituted benzene nucleus by methyl, chloro or alkoxy with 1 to 4 carbon atoms and B means a benzene or naphthenic nucleus substituted by chlorine, bromine, nitro, alkyl, alkoxy or dialkylamino groups and 1 to 5 carbon atoms for each alkyl group, characterized in that they condense, in a manner known per se with aldehydes of the formula **(See formula)** if necessary in the presence of acidic or basic condensing agents. (Machine-translation by Google Translate, not legally binding) |
| priorityDate | 1972-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.