http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59144772-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9cb217f83556ce2a418344c2d485415 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K19-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D241-18 |
| filingDate | 1983-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dcede8edf8a07d1a13a018adbcb2dde3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0895bc9584f07942c2cd72287a39de8c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_898d09899231c5b7c9ac4ea59994860d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d30bcdccf76f1e6db0778ef5de327e8 |
| publicationDate | 1984-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59144772-A |
| titleOfInvention | Liquid crystal pyrazine derivative and its preparation |
| abstract | NEW MATERIAL:The pyrazine derivative of formula I (R is 3W10C aliphatic alkyl or acyl). n EXAMPLE: 2-Pentyloxy-5-(4-cyanophenyl)pyrazine. n USE: Useful as a component of liquid crystal composition. It has the property of liquid crystal in itself, and is used as a mixture with various liquid crystal compounds at a proper ratio to improve the properties of liquid crystal composition. n PREPARATION: The compound of formula I can be prepared by reacting the 5-(4-cyanophenyl)-2-pyrazinol of formula II with the alkyl halide or acyl halide of formula R-X (X is halogen) in the presence of a base. The compound of formula II can be synthesized by (1) oxidizing 4-cyanoacetophenone derived from commercially available 4-bromoacetophenone and cuprous cyanide, with selenium dioxide, and (2) reacting the resultant 4-cyanophenylglyoxal hydrate with glycinamide hydrochloride. n COPYRIGHT: (C)1984,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0146282-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0146282-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2004500383-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4632924-A |
| priorityDate | 1983-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.