http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-794558-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14f86e164bb6ab1032c519b42ff81a64 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-12 |
| filingDate | 1956-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1958-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-794558-A |
| titleOfInvention | An improved method for the mononitration of ºÔ-chlorotoluene |
| abstract | 794,558. Mononitro-p-chlorotoluenes. FAIRWEATHER, H. G. C. (General Aniline & Film Corporation). Dec. 20, 1956, No. 38884/56. Class 2 (3). A mixture of isomeric 4-chloronitrotoluenes (mainly 4-chloro-2-nitrotoluene and 4-chloro-3- nitrotoluene, with an enhanced proportion of the former) is prepared by nitrating p-chlorotoluene with a mixture of sulphuric acid, nitric acid and water (59-60 per cent; 34-36 per cent; 4-7 per cent, respectively) at a temperature of - 5 to 15‹ C. in the presence of an aliphatic dihalide containing from 2-4 carbon atoms, for example ethylene dichloride, propylene dichloride, trimethylene dichloride, α- butylene dichloride or butylidene dichloride. Nitrations in the presence of ethylene dichloride are described in the examples. |
| priorityDate | 1956-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.