http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4096154-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79751aeaa9923745648e5ae7d9c35782 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B69-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-32 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-29 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B69-06 |
| filingDate | 1976-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1978-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07a0cef5df968c453863d0d961d20b75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d9449c83105eab6abc4c130dc20af07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26c4380dfd581bce25f6031f484bbbfd |
| publicationDate | 1978-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4096154-A |
| titleOfInvention | Process for the manufacture of compounds containing vinyl groups |
| abstract | A novel process for the production of compounds of the formula A-CH=CH-D-CH=CH-A1 (I) wherein A and A1, independently of one another, denote phenyl, naphthyl, diphenylyl, 2-phenyl-1,2,3-triazol-4-yl or pyridyl, it being possible for A and A1 to contain non-chromophoric substituents, and D denotes 4,4'-diphenylylene, 1,5- or 2,6-naphthylene, or a 9,10-dihydrophenanthrene or dibenzofurane radical which is bonded to the vinylene groups in the 2,7-position, which comprises reacting in a first stage a compound of the formula X-CH2-D-CH2-X (II) wherein X denotes halogen, especially chlorine or bromine, hydroxyl or a group <IMAGE> wherein X1 represents an aliphatic cycloaliphatic or aromatic hydrocarbon radical, especially alkyl having 1 to 6 carbon atoms, or phenyl, and D has the indicated meaning, in a strongly acid medium, in a molar ratio of at least 1:2, with an organic sulphide containing 5 to 8 ring members, of the formula <IMAGE> (III) wherein B represents a polymethylene group of 4 to 7 methylene groups and wherein one of these methylene groups can be replaced by a hetero-atom and wherein these methylene groups can also contain alkyl groups with 1 to 4 carbon atoms as substituents, to give a sulphonium salt of the formula <IMAGE> (IV) wherein M represents the anion of the strong acid used and n denotes the numbers 1 or 2; reacting, in a second stage, the resulting sulphonium salt with 2 mols of an aldehyde of the formula A-CHO (V) or A1-CHO (VI) or their mixture, in the presence of strong bases, in a strongly polar, protic or aprotic, water-miscible solvent to give a diepoxide of the formula <IMAGE> (VII) and subjecting in a 3rd stage, the diepoxide of the formula (VII), thus obtained, to a reduction according to processes which are in themselves known for the reduction of epoxides with elimination of the epoxide oxygen and formation of vinylene groups. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4839203-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4704324-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5962547-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4885355-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6020508-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4797456-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9890237-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016369041-A1 |
| priorityDate | 1972-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 312.