http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101935284-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b879126793f0717bf2a00f561f02599a |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C213-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C217-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-50 |
| filingDate | 2010-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2012-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5213d754593838a6574c7ef8fc6c2189 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c163a433ee84995bd0b8ffbba1a08811 |
| publicationDate | 2012-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101935284-B |
| titleOfInvention | Preparation method of 2-nitryl-5-substituent-1,4-p-phenylenediamine |
| abstract | The invention provides a preparation method of 2-nitryl-5-substituent-1,4-p-phenylenediamine, comprising the following steps of: preparing N1,N4-difluoro(trifluoroacetyl group)-2-substituent p-phenylenediamine II through chemical reaction by taking 2-substituent-1,4-p-phenylenediamine sulfate I as a reaction starting material; preparing N1,N4-difluoro(trifluoroacetyl group)-2-nitryl-5-substituent p-phenylenediamine III under the action of concentrated nitric acid through the II; and finally depriving a protective group to obtain a target product, i.e. the 2-nitryl-5-substituent-1,4-p-phenylenediamine IV, under the action of a weak base through the III. The method for preparing the 2-nitryl-5-substituent-1,4-p-phenylenediamine saves the using amount of the concentrated nitric acid without generating waste acids, is environmental-friendly, achieves the productivity by 50-60 percent and amplifies the reaction. |
| priorityDate | 2010-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.