http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SK-280633-B6
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cf32b60391b469c41e86c353437f5751 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D215-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D221-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D221-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D215-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D221-02 |
| filingDate | 1991-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dcaf91d613784cf67a56bf14bc6a14a5 |
| publicationDate | 2000-05-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SK-280633-B6 |
| titleOfInvention | METHOD OF PREPARATION 1,2,3,4,4A, 5,10,10A-OKTAHYDROBENZO |
| abstract | Disclosed is a process for the preparation of compounds of the general formula (I) wherein R1 and R2 independently of each other denote hydrogen or a methoxy group whilst both the general substituents can not simultaneously denote hydrogen; and R3 and R4 independently of each other denote an C1-4alkyl, which process can be characterised in that an anion of the general formula (I) compound is obtained in a first phase in highly alk. conditions and this anion is converted to keteneacetal which is protonised in a second phase. |
| priorityDate | 1990-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.