http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S574955-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C241-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C243-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate | 1980-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7cf435d5cc3a450d1499074ddfcac74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f70eea9e958d6f3a5d2c42d29f016633 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0af7cba6529cdca6708d6667fb4d5e56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4ca09be8d5613b11e257dd3e6f8bba77 |
| publicationDate | 1982-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S574955-A |
| titleOfInvention | Reducing method of benzenediazonium sulfate |
| abstract | PURPOSE: To obtain phenylhydrazine useful as an intermediate for medicine, dye, etc. in high yield, by reducing benzenediazonium sulfate with ammonium sulfite and ammonium hydrogensulfite as reducing agents under specific conditions. n CONSTITUTION: Benzenediazonium sulfate is reduced with ammonium sulfite and ammonium hydrogensulfite as reducing agents in an aqueous medium at pH 5.2W 7.0 under a pressure of the saturated vapor pressure of the reaction mixture to 10kg/cm 2 .gauge to give an acid salt of phenylhydrazine. The resultant compound is then reacted with a base and converted into phenylhydrazine. The reducing raction is preferably carried out at 30W50°C for 30min or longer in the initial period of the reaction and then at 80W100°C. The starting material benzenediazonium sulfate can be obtained by diazotizing aniline with nitrous acid, etc. in an aqueous solution of sulfuric acid. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2001233841-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0424591-A |
| priorityDate | 1980-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.