29277-10-9Relevant academic research and scientific papers
Ferroelectric liquid crystal compounds containing chiral haloalkoxy tail units and compositions containing them
-
, (2008/06/13)
Chiral, nonracemic compounds of the general formula: STR1 wherein m and n are either both zero, both equal one or n is equal to one and m is equal to zero, X and Y and Z are halogens, R' is an alkyl, alkoxyl, alkenyl, thioalkyl, thioether, ether, or alkylsilyl group containing three to fifteen carbon atoms, and R is an alkyl group having one to fifteen carbon atoms and where Ar is: where A, B and D independently of one another are aromatic rings which are selected from the group consisting of a phenyl, a pyridine ring, a pyrimidine ring, a pyridizine ring, a pyrazine ring and a thiadiazole ring, wherein a, b and d are integers from 0-3 such that a+b+d=2-3, where E and F independently of one another are linking groups selected from the group consisting of a --CH2 --CH2 --, --CH2 --O--, --CH2 --S--, --O--CH2 --, --S--CH2, --OOC-- or --COO-- wherein e and f can be 1 or 0, when e and/or f is 0, the adjacent aromatic rings are linked by a carbon-carbon single bond, preferably e and f are both 0 or one of e or f is 1, and wherein * indicates a chiral center, which are useful as ferroelectric liquid crystal components having high polarization are described.
Optically active pyrimidines derivatives
-
, (2008/06/13)
Optical active compounds of the formula (1), (2), (3) and (4): STR1 The compounds (1), (2) and (3) are useful as raw materials of chiral dopants to be added for forming liquid crystal compositions, medicines or agricultural chemicals, and the compound (4)
