Compound having unsaturated side chain, process for preparing th

Details Compound having unsaturated side chain, process for preparing th Compound having unsaturated side chain, process for preparing th

1994-07-13

1996-09-10

Kelly, C. H.

Compositions

Liquid crystal compositions

25229961, 25229966, 359104, 556436, C09K 1952, C09K 1934, C09K 1912, G02F 113

Patent

active

055543170

ABSTRACT:
A compound having an unsaturated side chain represented by the formula: ##STR1## in which A and B are the same and different and represent an aromatic or heterocyclic group or either one of A and B represents a single bond; X.sub.1, X.sub.2 and X.sub.3 are the same or different and represent a hydrogen atom or a lower alkyl group; R.sub.1 represents a saturated or unsaturated alkyl group which may be substituted with a halogen atom or an alkoxyalkyl group which may be substituted with a halogen atom; X represents --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --C.ident.C-- or a single bond; n is an integer of 0 to 6; q is an integer of 1 to 15; p and s are each 0 or 1; and the asterisk * indicates an asymmetric carbon atom, which is useful as an intermediate of a liquid crystal or a monomer of a liquid crystalline polymer.

REFERENCES:
patent: 4913839 (1990-04-01), Uchida et al.
patent: 5138010 (1992-08-01), Keller et al.
patent: 5211877 (1993-05-01), Andrejewski et al.
patent: 5252251 (1993-10-01), Sato et al.
patent: 5332520 (1994-07-01), Bach et al.
patent: 5332521 (1994-07-01), Yuasa et al.
patent: 5332522 (1994-07-01), Chen et al.
Chem. Abstract 119; 203425 (1992).

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