US 9,809,749 B2
Mesogenic compound, liquid-crystal medium and liquid crystal display
Michael Wittek, Erzhausen (DE); Matthias Bremer, Darmstadt (DE); and Andreas Taugerbeck, Darmstadt (DE)
Assigned to MERCK PATENT GMBH, Darmstadt (DE)
Appl. No. 14/785,500
Filed by MERCK PATENT GMBH, Darmstadt (DE)
PCT Filed Mar. 21, 2014, PCT No. PCT/EP2014/000764
§ 371(c)(1), (2) Date Oct. 19, 2015,
PCT Pub. No. WO2014/169985, PCT Pub. Date Oct. 23, 2014.
Claims priority of application No. 13002073 (EP), filed on Apr. 19, 2013.
Prior Publication US 2016/0115388 A1, Apr. 28, 2016
Int. Cl. C09K 19/46 (2006.01); C09K 19/34 (2006.01); C09K 19/02 (2006.01); C09K 19/06 (2006.01); C07D 239/26 (2006.01); C09K 19/54 (2006.01); C09K 19/58 (2006.01); G02F 1/137 (2006.01); C09K 19/04 (2006.01); C09K 19/12 (2006.01); C09K 19/20 (2006.01); C09K 19/30 (2006.01)
CPC C09K 19/3458 (2013.01) [C07D 239/26 (2013.01); C09K 19/0275 (2013.01); C09K 19/062 (2013.01); C09K 19/3469 (2013.01); C09K 19/46 (2013.01); C09K 19/542 (2013.01); C09K 19/588 (2013.01); G02F 1/137 (2013.01); C09K 2019/0448 (2013.01); C09K 2019/0466 (2013.01); C09K 2019/123 (2013.01); C09K 2019/2035 (2013.01); C09K 2019/2042 (2013.01); C09K 2019/3083 (2013.01); C09K 2019/3422 (2013.01); C09K 2019/548 (2013.01)] 17 Claims
 
1. A mesogenic compound of formula I-Z

OG Complex Work Unit Drawing
wherein
R1 is n-alkyl or n-alkoxy with 1 to 9 C-atoms, or alkenyl, alkenyloxy or alkoxyalkyl with 2 to 9 C-atoms,
L1 is H or F, and
X1 is F or CF3.