| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_df4e72183c5ee38a234212562dca6570 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-60 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-00 |
| filingDate |
1976-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1980-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f795f3d9d812bbed02e4a4efff754040
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_301dec9c8fde28f00a5e4ce4f5fa1501
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e324f5a00c721beb367f03c810e0e32e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce4afa6d3d837a3d5ec7b62c7ae858a4 |
| publicationDate |
1980-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
SU-784757-A3 |
| titleOfInvention |
Method of preparing hydroquinone pyrocatechin |
| abstract |
Aromatic compounds of the general formula <IMAGE> in which R and Ro represents a hydrogen atom or an alkyl radical of 1 to 4 carbon atoms are hydroxylated by reaction with hydrogen peroxide in the presence of a catalytic amount of a strong acid and the reaction is carried out in the presence of an activator which is a juxtanuclear aromatic aldehyde or derivative thereof selected from an acetal or a benzhydrol. |
| priorityDate |
1975-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |