2-cyano-4-halogenophenyl esters

Details 2-cyano-4-halogenophenyl esters 2-cyano-4-halogenophenyl esters

1983-09-09

1986-07-29

Chan, Nicky

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

Organic compounds

Nitriles

25229963, 2522995, C07C12160, C09K 334

Patent

active

046030182

ABSTRACT:
New compounds useful as constituents of liquid crystal compositions exhibiting a negative dielectric anisotropy are provided, which are 2-cyano-4-halogenophenyl esters expressed by the general formula ##STR1## wherein R represents hydrogen atom or an alkyl group or an alkoxy group of 1 to 10 carbon atoms; ##STR2## each represent either one of ##STR3## l, m and n each represent 0 or 1 and the total of l+m+n is 1, 2 or 3; X represents F or Cl; and Y and Z each represent hydrogen atom or F or Cl.

REFERENCES:
patent: 4198312 (1980-04-01), Sato et al.
patent: 4340498 (1982-07-01), Sugimori
patent: 4502974 (1985-03-01), Sugimori et al.

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