Title:
OPTICALLY ACTIVE COMPOUNDS AND LIQUID CRYSTAL PHASE
Document Type and Number:
WIPO Patent Application WO1990013611
Kind Code:
A3
Abstract:
The invention relates to optically active compounds of formula (I) in which R denotes an alkyl or alkenyl residue with up to 15 carbon atoms which is unsubstituted or substituted once by -CN or substituted at least once with fluorine or chlorine, whereby a CH2 group in this residue can be replaced by -O-, -CO-, -O-CO-, -CO-O- or -O-CO-O-, A<1> and A<2> independently of each other denote an unsubstituted 1,4-phenylene residue, pyridine-2,5-diyl residue, pyrimidin-2,5-diyl residue, pyrazin-2,5-diyl residue, pyridazin-3,6-diyl residue, 1,3,4-thiadiazol-2,5-diyl residue, 1,2,4-thiadiazol-3,5-diyl residue, trans-1,4-cyclohexylene residue or one of said residues substituted by one or two fluorine atoms, where one or two non-neighbouring CH2 groups can be replaced by -O- and/or -S- and/or a CH group, Z<1>, Z<2> and Z<3> independently of each other denote -CO-O-, -O-CO-, -CH2O-, -OCH2, -CH2CH2-, -CH=CH-, -C=C- or a single bond, Q<1> denotes -CH2CH2-, -CH2CH2CH2-, -OCH2-, -CH2OCH2-, -OCH2CH2-, -O-CO-, -CO-OCH2-, Q<2> denotes -O-, -O-CO-, -(CH2)3-O- or a single bond, m = 0, 1, 2 or 3, n = 0 or 1 and o is a number between 1 and 9. Also described is their use as components of liquid crystal phases.
Inventors:
WAECHTLER ANDREAS (DE)
GEELHAAR THOMAS (DE)
HITTICH REINHARD (DE)
BARTMANN EKKEHARD (DE)
KRAUSE JOACHIM (DE)
POETSCH EIKE (DE)
GEELHAAR THOMAS (DE)
HITTICH REINHARD (DE)
BARTMANN EKKEHARD (DE)
KRAUSE JOACHIM (DE)
POETSCH EIKE (DE)
Application Number:
PCT/EP1990/000679
Publication Date:
December 27, 1990
Filing Date:
May 10, 1990
Export Citation:
Assignee:
MERCK PATENT GMBH (DE)
International Classes:
G02F1/13; C07C22/00; C07C43/12; C07C43/17; C07C43/192; C07C43/225; C07C69/716; C07C69/75; C07C69/757; C07C69/90; C07C69/92; C07C255/37; C07C255/46; C07D213/30; C07D213/50; C07D237/08; C07D239/26; C07D239/34; C07D241/12; C07D285/08; C07D285/12; C07D285/13; C09K19/12; C09K19/20; C09K19/30; C09K19/34; C09K19/42; C09K19/58; (IPC1-7): C09K19/34; C07C43/225; C07C69/716; C07C69/75; C07C69/757; C07C69/92; C07D213/30; C07D213/50; C07D239/26; C07D239/34; C07D285/12; C09K19/12; C09K19/20; C09K19/30
Foreign References:
EP0278665A2 | 1988-08-17 | |||
EP0289270A1 | 1988-11-02 | |||
EP0237007A2 | 1987-09-16 |
Other References:
See also references of EP 0428720A1
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