http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2505529-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_34f094670dacfc1c70350b9e58482e3f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C319-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-18 |
| filingDate | 2012-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9923b87f7b4cfe2d72192d062492cb74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_13bbf8f7b894d114fd6b9b3024b11ecb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e50ef0673c694c2921a4aff3e5ca56d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f1267006e53a38fddc237f94e8f8063 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36e1aee565b3b3c8ad76832a00987881 |
| publicationDate | 2014-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2505529-C1 |
| titleOfInvention | Synthesis of novel class of fluorine-containing liquid-crystalline compounds with application of chladone 114b2 as initial compound |
| abstract | FIELD: chemistry. n SUBSTANCE: invention relates to compounds of general formula (I), in which Alk represents alkyl substituent: C 4 H 9 , C 6 H 13 , C 10 H 21 C 15 H 31 , C 18 H 37 ; R 1 represents group 4-CH 3 C 6 H 4 ; n = 0, 1 or 2, CH n CF n represents fragment: if n-2 CH 2 -CF 2 , if n=1 CH=CF, if n=0 C≡C. Invention also relates to method of obtaining compounds of formula (I). Para-bromobenzaldehyde hydrazone is brought into interaction with 2-bromo-1,1,2,2-tetrafluoroethyl 4-methylphenyl sulfide in presence of ethylenediamine base and copper (I) chloride catalyst in ethanol at 30-45°C for 5 hours with formation of mixture of 3-(4-bromophenyl)- 1,1,2,2-tetrafluoropropyl 4-methylphenyl sulfide and 3-(4-bromophenyl)- 1,1,2-trifluoroprop-2-en-1-yl 4-methylphenyl sulfide, after which each obtained substance is separately introduced into reaction of cross-combination with 4-alkyloxyboric acids for 6 hours, with application of 1,2-dimethoxyethane as solvent, water solution of inorganic base, and palladium catalyst (Pd(PPh 3 ) 4 , PdCl 2 (dppb), Pd(dba) 2 , PdCl 2 (PPh 3 ) 2 , Pd(OAc) 2 ), after that, reaction of fluorohydrogen elimination is performed for each compound with 1.0 M solution of sodium hexamethyldisilaside in THF at -80°C for 1-3 hours. n EFFECT: obtained are novel compounds, demonstrating liquid-crystalline properties and can be further used in liquid-crystalline materials. n 4 cl, 2 tbl, 14 ex |
| priorityDate | 2012-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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