Liquid crystal thiol compounds

Details Liquid crystal thiol compounds Liquid crystal thiol compounds

1992-04-13

1994-10-04

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229966, 25229961, 25229901, C09K 1906, C09K 1912, C09K 1934, C09K 1952

Patent

active

053523814

ABSTRACT:
Compounds of formula (I) where R is C.sub.1-15 alkyl, X is hydrogen, fluorine or chlorine, m and n are independently selected 1 or 0, W is C.sub.1-15 alkyl or alkoxy, CN or halogen, rings A and B Are independently selected from phenyl, laterally fluoro- or chloro- substituted phenyl, transcyclohexyl pyridyl, pyrimidyl or dioxanyl. Preferred embodiments have R=C.sub.3-8 and where W is alkyl or alkoxy then it is also preferable that W=C.sub.3-8. Where m=0, then preferably W=CN and where m=1, then preferably W=alkyl.

REFERENCES:
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patent: 5043093 (1991-08-01), Krause et al.
patent: 5068053 (1991-11-01), Reiffenrath et al.
patent: 5084204 (1992-01-01), Reiffenrath et al.
patent: 5124068 (1992-06-01), Krause et al.
patent: 5128061 (1992-07-01), Hsu et al.
Demus et al., Flussige Kristalle in Tabellen II pp. 373-388, 1984.
Khundkar et al., Solvent Tuned Intramolecular Charge Recombination Rates In a Conjugated Donor-Acceptor Molecule, J. Phys. Chem, 1990, 94, 1224-1226.
Amatore et al., Efficient Palladium-Catalyzed Synthesis of unsymmetrical donor-acceptor biaryls, J. Organometallic Chem 390 (1990) 389-398.

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