CPC C09K 19/3098 (2013.01) [C09K 19/3059 (2013.01); C09K 2019/0444 (2013.01); C09K 2019/122 (2013.01); C09K 2019/123 (2013.01); C09K 2019/181 (2013.01); C09K 2019/183 (2013.01); C09K 2019/3016 (2013.01); C09K 2019/3063 (2013.01); C09K 2219/11 (2013.01)] | 16 Claims |
1. A compound of formula C
in which
RC denotes H, alkyl or alkoxy having 1 to 12 C atoms, or alkenyl, alkenyloxy or alkoxyalkyl having 2 to 12 C atoms, in which one or more CH2-groups may be replaced by
or denotes a group RP,
RP denotes halogen, CN, NCS, RF, RF—O— or RF—S—, wherein
RF denotes fluorinated alkyl having 1 to 9 C atoms or fluorinated alkenyl having 2 to 9 C atoms,
ZC1, ZC2 identically or differently, denote —CH═CH—, —CF═CF—, —CH═CF—,
—CF═CH—, —C≡C— or a single bond,
X denotes Cl or F,
Y denotes H, Cl, F, alkyl or alkoxy each having 1 to 6 C atoms,
t is 0, 1 or 2, and
denote a radical selected from the following groups:
a) the group consisting of 1,4-phenylene, 1,4-naphthylene, and 2,6-naphthylene, in which one or two CH groups may be replaced by N and in which one or more H atoms may be replaced by L,
b) the group consisting of trans-1,4-cyclohexylene, 1,4-cyclohexenylene, bicyclo[1.1.1]-pentane-1,3-diyl, 4,4′-bicyclohexylene, bicyclo[2.2.2]octane-1,4-diyl or spiro[3.3]heptane-2,6-diyl, in which one or more non-adjacent CH2 groups may be replaced by —O— and/or —S— and in which one or more H atoms may be replaced by F,
c) the group consisting of thiophene-2,5-diyl, thieno[3,2-b]thiophene-2,5-diyl or selenophene-2,5-diyl, each of which may also be mono- or polysubstituted by L, and
L on each occurrence, identically or differently, denotes F, Cl, CN, SCN, SF5 or straight-chain, in each case optionally fluorinated, alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy having 1 to 12 C atoms or branched, in each case optionally fluorinated, alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy having 3 to 12 C atoms.
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