http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4169840-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4a1feff1a795bf8cb62e13e59b923357 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 |
| filingDate | 1977-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1979-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_626ac98e66c3c10045de2cbdbccf7b12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_475220fc8ff2b828edb5c89f188ce1af http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a80768d29b8dc5633e45b9fc80497fa6 |
| publicationDate | 1979-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4169840-A |
| titleOfInvention | Method of preparing furocoumarins |
| abstract | This invention relates to an improved method of preparing furocoumarins having the following formula: ##STR1## wherein R is a radical selected from the group consisting of hydrogen, hydroxy and lower alkoxy, which comprises reacting a coumarin having the following formula: ##STR2## or the alkali metal salt thereof, with a haloacetal having the following formula: ##STR3## WHEREIN R 1 is a lower alkyl group and Hal is selected from the group consisting of chlorine and bromine; and to the intermediate products thereof, namely a substituted coumarin acetal of the following formula: ##STR4## and the corresponding coumarin aldehyde of the following formula: ##STR5## |
| priorityDate | 1977-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.