http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1326443-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_04953a12d585c6b78e3eeb6adf94b1a3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C59-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C59-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-11 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-11 |
| filingDate | 1970-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1973-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1326443-A |
| titleOfInvention | Dihydroxygenzenes |
| abstract | 1326443 Dihydroxybenzenes DERMAL LABORATORIES Ltd 19 Jan 1972 [19 Oct 1970] 49591/70 Heading C2C Novel compounds I in which R is a 2-20C divalent alphatic hydrocarbon radical and X is OH or COOH and, when X is COOH, their lactones, amides, esters and salts are prepared by dealkylation of compounds II in which R 1 and R 2 are 1-4C alkyl or by converting compounds IV in which Y is a group convertible into X (e.g. iminoester HCl group) into X. # - (2,3 - Dimethoxyphenyl) - propionic acid IV is prepared by hydrogenation or reduction of # - (2,3 - dimethoxyphenyl) - cinnamic acid which is prepared by reaction of 2,3-dimethoxybenzaldehyde with malonic acid. If IV is reacted with SOCl 2 #-(2,3-dimethoxyphenyl)propionyl chloride is produced. If this is reacted with ammonia #-[2,3-dimethoxyphenyl]- propionamide is prepared and this on reaction with SOCl 2 gives #-[2,3-dimethoxyphenyl]propionitrile. This in reaction with HI gives #-[2,3-dihydroxyphenyl]propionitrile, which on reaction with ethanol gives the iminoester. 12 - (2,3 - Dimethoxyphenyl) - dodec - 1 - en- 12-ol V is prepared by reacting undecyl-1-en- 11-ol with SOCl 2 to give the chloride and converting this to a Gringard reagent which is then reacted with 2,3-dimethoxybenzaldhyde. Oxidation of V gives 11-(2,3-dimethoxyphenyl)- 11-hydroxy-undecanoic acid, which on dehydration gives 11-(2,3-dimethoxyphenyl)-undec-10- enoic acid VI. If VI is hydrogenated 11-(2,3- dimethoxyphenyl)-undecanoic acid is prepared. |
| priorityDate | 1970-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.