http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BE-821319-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate | 1974-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1975-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | BE-821319-A |
| titleOfInvention | PROCESS FOR PREPARING 5-NITRO-1,4-NAPHTOQUINONE |
| abstract | 5-Nitro-1,4-naphthoquinone (II) is prepd. by (a) directly nitrating 1,4-naphthoquinone (I) with HNO3 in the presence of an amount of H2SO4 which is such that dehydration value of H2SO4 >4 (>6), pref. at -20 to +80 (0-60) degrees C, and (b) precipitating prod. by introducing reaction mixt. obtd. into an aq. medium, pref. at 0-100 (30-70) degrees C. (II) is a starting material in prepn. of dyes, pigments and agricultural chemicals. 1-nitroanthraquinone can be prepd. by addn. of butadiene to (II) and dehydrogenation. |
| priorityDate | 1973-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.