32709-46-9Relevant academic research and scientific papers
Liquid-crystalline compounds
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, (2008/06/13)
Liquid-crystalline compounds of the formulae I and II, where Z1 is the radical of an m-valent alcohol an m-valent acid or certain trivalent triazine derivatives; Z2 is an n-valent radical of a monocyclic or polycyclic aromatic compound; X1 is a chemical bond or --CO--; X2 is --O--, --S--, --CO--O--, --O--CO--, --SO2 --, --SO2 --O--, --O--SO2 --O--, --NR4 --, --CO--NR4 --NR4 --O-- or --CO--N4 is H or C1 -C8 -alkyl; m and n are 3 to 6; R1 is a C2 -C20 -bridge having 2 to 12 bridging members, which may be interrupted by --O--, --S-- or --NR4 --, each of these hetero units being separated by at least 2 carbon atoms; Y is a chemical bond, --O--, --S--, --CO--O--, --O--CO--, --NR4 --, --CO--NR4 -- or --NR 4 --CO--; M is a mesogenic group. These compounds are suitable for the production of optical and electro-optical data carriers and display elements.
Defined oligomeric liquid-crystalline compounds having smectic liquid-crystalline phases
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, (2008/06/13)
Liquid-crystalline compounds of the formulae I and II; where Z1 is the radical of an m-valent alcohol an m-valent acid or certain trivalent triazine derivatives; Z2 is an n-valent radical of a monocyclic or polycyclic aromatic compound; X1 is a chemical bond or -CO-; X2 is -O-, -S-, -CO-O-, -O-CO-, -SO2 -, -SO2 -O-, -O-SO2 -O-, -NR4- , -CO-NR4 -, -NR4 -O- or -CO-N4 is H or C1 -C8 -alkyl; m and n are 3 to 6; R1 is a C2 2-C20 -bridge having 2 to 12 bridging members, which may be interrupted by -O-, -S- or -NR4 -, each of these hetero units being separated by at least 2 carbon atoms; Y is a chemical bond, -O-, -S-, -CO-O-, -O-CO-, -NR4 -, -CO-NR4 - or -NR4 -CO -; M is a mesogenic group. These compounds are suitable for the production of optical and electro-optical data carriers and display elements.
Optically active phenoxypropionic esters
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, (2008/06/13)
Optically active compounds of the formula I STR1 where R is C1 -C12 -alkyl or -perfluoroalkyl in which one or two non-adjacent CH2 or CF2 groups can also be replaced by --O-- and/or --CO-- and/or --CO--O-- and/or --CH=CH-- and/or --CH-halogen-- and/or --CHCN-- and/or --0--CO--CH-halogen-- and/or --O--CO--CHCN--, or is C1 -C12 -alkyl which can have a terminal chemically reactive group and in which a CH2 group can be replaced by --O--, A1 and A2 are each, independently of one another, 1,4-phenylene which is unsubstituted or substituted by one or two F and/or Cl and/or Br atoms and/or CH3 groups and/or CN groups and in which one or two CH groups can also be replaced by N, 1,4-cyclohexylene in which one or two non-adjacent CH2 groups can also be replaced by --O-- and/or --S--, 1,4-piperidinediyl, 1,4-bicyclo[2.2.2]octylene, 2,6-naphthalenediyl, decahydro-2,6-naphthalenediyl or 1,2,3,4-tetrahydro-2,6-naphthalenediyl, A3 is unsubstituted or substituted phenyl, Z is --CO--O--, --O--CO--, --CH2 CH2 --, --OCH2 --, --CH2 O--, --C C-- or a single bond and m is 0, 1, 2 or 3.
