Optical active compound, process for producing same and liquid c

Details Optical active compound, process for producing same and liquid c Optical active compound, process for producing same and liquid c

1988-07-21

1990-04-17

Gron, Teddy S.

Compositions

Liquid crystal compositions

2522995, 25229966, 350350S, 560 55, 560 59, 560 75, 560102, 560111, 560141, 560144, 560145, 562469, 562471, 562472, 562474, 562605, 558260, 568642, 568655, 568842, C09K 1952, G02F 113, C07B 5321

Patent

active

049178172

ABSTRACT:
An optically active functional compound represented by the following formula (1) is disclosed: ##STR1## wherein R denotes an alkyl group having 1-14 carbon atoms; -X- denotes ##STR2## denotes a single bond, ##STR3## n=0, 1 or 2; and C* denotes an asymmetric carbon atom. The compound of the formula (1) may be produced through an optically active compound of the following formula (2) or (3): ##STR4## The compounds of the above formulas (1)-(3) are all characterized by a trifluoromethyl group providing a large spontaneous polarization attached to an asymmetric carbon atom.

REFERENCES:
patent: 4613209 (1986-09-01), Goodby et al.
Goodby, J. W., et al, Liquid Crystals and Ordered Fluids, vol. 4, Griffin, A., et al., Ed., Plenum Press, N.Y., pp. 1-32 (1985).
Weinges, K., et al., Liebigs Ann. Chem., pp. 90-102 (1985).
Kitazume, T., et al., Chem. Lett., pp. 237-238 (1983).
Taguchi, T., et al., Tetraheoron Lett., vol. 27, No. 42, pp. 5117-5120 (1986).
Walborsky, H. M., et al., J. Am. Chem. Soc., vol. 77, pp. 3637-3640 (1955).
Muller, N. J. Pharm. Sciences, vol. 75, No. 10, pp. 987-991 (1986).

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