http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1130960-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N31-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-05 |
| filingDate | 1966-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1968-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1130960-A |
| titleOfInvention | Process for preparing 2,3-xylenol |
| abstract | 1,130,960. 2,3-Xylenol. SUMITOMO CHEMICAL CO. Ltd. 16 Dec., 1966 [28 Dec., 1965; 22 Jan., 1966], No. 56386/66. Heading C2C. [Also in Divisions A5 and C5] 2,3-Xylenol is prepared by heating 2,3-dimethyl - 5 - tertiary - alkyl phenol in the presence of sulphuric acid, phosphoric acid, hydrofluoric acid, aluminium trichloride, zinc dichloride, stannic chloride, titanium tetrachloride or boron trifluoride. The 2,3-dimethyl- 5-tertiary alkyl phenol used as starting material may be obtained from o-xylene by (a) treating o-xylene with a tertiary olefin, a tertiary-alkyl halide or a tertiary-alkyl alcohol in the presence of a Friedel-Crafts catalyst to form 3,4-dimethyl-tertiary alkyl benzene; (b) treating this with concentrated sulphuric acid to give 2,3 - dimethyl - 5 - tertiary - alkyl benzene sulphonic acid; (c) fusing this sulphonic acid with potassium hydroxide and/or sodium hydroxide to form 2,3-dimethyl-5-tertiary alkyl phenol. |
| priorityDate | 1965-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.