Ferroelectric liquid crystal compounds containing chiral haloalk

Details Ferroelectric liquid crystal compounds containing chiral haloalk Ferroelectric liquid crystal compounds containing chiral haloalk

1988-03-04

1991-09-24

Maples, John S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544335, 568642, 568643, 560 75, 560108, 560109, 25229901, 25229961, 25229966, 25229965, 25229967, 359103, C07D23972, C09K 1952

Patent

active

050515063

ABSTRACT:
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 or alkoxy group having three to fifteen carbons, R is an alkyl group having one to fifteen carbons, and Ar is a 4,4'-substituted phenylvenzoate, 4,4'-substituted biphenylbenzoate, 5,4-substituted 2-phenylpyrimidine or 4,4'-substituted biphenyl core, and wherein * indicates a chiral center, which are useful as ferroelectric liquid crystal components having high polarization are described.

REFERENCES:
patent: 4695650 (1987-09-01), Walba et al.
patent: 4725688 (1988-02-01), Taguchi et al.
patent: 4728458 (1988-03-01), Higuchi et al.
patent: 4798680 (1989-01-01), Nohira et al.
patent: 4831182 (1989-05-01), Higuchi et al.
patent: 4886619 (1989-12-01), Janulis
patent: 4954600 (1990-09-01), Hachiya
Walba et al. (1986) J. Amer. Chem. Soc. 108:5210-5221.
Walba et al. (1986) J. Amer. Chem. Soc. 108:7424-7425.

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