| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_73ee0bacab5a7576a6a3244747f6ea99 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2521-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A62D2101-22 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C43-2055
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A62D3-37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-74 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A62D101-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B31-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B35-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A62D3-37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C301-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-74 |
| filingDate |
1975-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1976-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
GB-1458633-A |
| titleOfInvention |
Process for dehalogenating aromatic compounds |
| abstract |
1458633 Dehalogenation of aromatic compounds IMPERIAL CHEMICAL INDUSTRIES Ltd 31 July 1975 [17 Sept 1974 15 May 1975] 40420/74 and 20618/75 Heading C2C [Also in Division C5] A process for dehalogenating a water immiscible or sparingly soluble aromatic (including heteroaromatic) compound containing at least one chlorine or bromine atom as a nuclear substituent comprises contacting the said compound with an aqueous solution of a formic acid salt in the presence of a hydrogenation catalyst and a surface active agent (as hereinafter defined). By the term surface active agent is meant any substance which, when dissolved in water lowers its surface energy. It has been found that reductive dehalogenation i.e. a replacement of a chlorine or bromine atom by a hydrogen atom is favoured by use of an excess of formic acid salt i.e. greater than 3 mole equivalents and a pH near to neutrality whereas the portionwise addition of from 1À0 to 3À0 mole equivalents of formic acid salt for each chlorine or bromine atom present as nuclear substituent favours the formation of internuclear bonds especially under strongly alkaline conditions. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4792625-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0370325-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5154831-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5286386-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5336808-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5055196-A |
| priorityDate |
1974-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |