http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5927839-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_52a65b677bbedbe7bf090dd556a7cc43 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G09F9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-139 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-137 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C25-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate | 1982-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b3fb0c8409eab4ec3883c827d708427 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d8c8732ca7b8cf7f28dd676a0167bbc |
| publicationDate | 1984-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5927839-A |
| titleOfInvention | Trans-4-alkyl-trans-4"-(3,4-difluorophenyl)-trans- octadecahydro-p-terphenyl |
| abstract | NEW MATERIAL:The compound of formula I (R is H or 1W10C alkyl). n EXAMPLE: trans-4-Butyl-trans-4"- ( 3, 4-difluorophenyl ) -trans-octadecahydro-p-terphenyl. n USE: A liquid crystal substance having positive dielectric anisotropy and exhibiting liquid crystal phase over a wide temperature range. n PROCESS: The objective compound of formula I can be prepared by reacting 4- methoxybromobenzene with metallic Mg and then with the compound of formula II, dehydrating with KHSO 4 , reducing in the presence of Raney nickel catalyst, separating and recrystallizing the trans-isomer of formula III, demethylating with hydrobromic acid, catalytically reducing in the presence of an Ru catalyst, oxidizing with CrO 3 , reacting with a Grignard reagent, dehydrating with KHSO 4 , and finally catalytically reducing in the presence of a Raney Ni catalyst. n COPYRIGHT: (C)1984,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H05500830-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S61257599-A |
| priorityDate | 1982-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.