| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_16ab95c7b2745b5e6d27c2a0efc1b032
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_86a9ed7c8a6ac1cef85b472fe848603b |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D241-42 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D241-42 |
| filingDate |
1973-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1975-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d6513b6e642dd2fa2b13ce8665ab4ea
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f89848a08f0db870742a41258e003fe2 |
| publicationDate |
1975-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3919223-A |
| titleOfInvention |
Method of production of quinoxaline, obtained particularly from not purified raw materials |
| abstract |
Quinoxaline is prepared in high purity and yield by condensing at least 6% by weight of glyoxal with at least 11% by weight of o-phenylenediamine in aqueous solution in the presence of alkali metal salts of weak acids. A crude solution of glyoxal containing weak acids formed during the preparation of glyoxal by oxidation of paraldehyde or acetaldehyde with nitric acid is the preferred starting material. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D766469-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D769472-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D776303-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D774215-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9416539-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9399870-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9399871-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D804687-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D827158-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D829935-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D763468-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D765273-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D764076-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D765885-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D765274-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D765887-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D765886-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D766467-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D765888-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9410323-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-D834220-S
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4091101-A |
| priorityDate |
1972-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |