http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CZ-2014367-A3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bc3841e4cd252c1e5fde421e43392d8e |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B63-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-377 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-51 |
| filingDate | 2014-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bc1bc5d1a474b4498daa9539cc84f32 |
| publicationDate | 2015-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CZ-2014367-A3 |
| titleOfInvention | Method for reducing dehalogenation of aromatic halogen derivatives |
| abstract | The present invention discloses a process for the reductive dehalogenation of aromatic halogen derivatives in an alkaline aqueous medium, at a temperature in the range of 10 to 49 degC to an aqueous solution or colloidal solution of an aromatic halogen derivative of formula I wherein A to E are independently H, I, Br, Cl, COOH, NH 2, wherein at least one substituent is halogen, add: a) a water-soluble base such as component A, in a molar ratio to organically bound halogen in the aromatic halogen derivative of 1: 1 to 1:20, using an amount such that the pH of the resulting solution is greater than 12; b) a reducing agent as component B selected from the group consisting of sodium or potassium borohydride, secondary alcohol having carbon numbers of 3 to 6 and OH groups of 1 to 2 and / or or a reducing monosaccharide having carbon numbers of 5 or 6, in a molar ratio to organically bound halogen in the aromatic halogen c) a nickel-containing catalyst as component C, in a molar ratio of nickel to organically bound halogen in the aromatic halogen derivative of 0.1: 1 to 1: 0.9; the resulting suspension is stirred at a temperature in the range of 1: 1 to 20: 1; 10 to 40 degC for at least 60 minutes and at most 72 hours, followed by stirring, and the nickel sludge is separated by sedimentation, optionally followed by filtration or centrifugation. |
| priorityDate | 2014-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.