OPTICALLY ACTIVE COMPOUND AND USE THEREOF - NIPPON TELEGRAPH & TELEPHONE

Title:

OPTICALLY ACTIVE COMPOUND AND USE THEREOF

Document Type and Number:

Japanese Patent JPH0269461

Kind Code:

A

Abstract:

NEW MATERIAL:An optically active compound expressed by formula I [either of rings (a) and (b) is polyhalogen ring containing total 4 F or F and Cl atoms; when ring (a) is the polyhalogen ring, ring (b) contains at least one F or Cl; L is -COO- or -OCO-; Q is -COO- or -O-; R1 and R2 are ≥4C alkyl; at least either of R1 and R2 is optically active group].

EXAMPLE: 4'-[3-Fluoro-4-(2-methylbutyloxycarbonyl)phenyloxycarbonyl]- tetrafluorophenyl 6-decyloxypyridine-3-carboxylate.

USE: Useful as one component of liquid crystal compositions and responsive at a high speed when used as a display element due to great spontaneous polarization within a wide temperature range.

PREPARATION: A compound expressed by formula II is converted into a compound expressed by formula III, which is then reacted with a compound expressed by formula IV and passed through several steps to afford the compound expressed by formula I.

Inventors:

SUGAWARA SHUNGO

Application Number:

JP22034988A

Publication Date:

March 08, 1990

Filing Date:

September 05, 1988

Export Citation:

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Assignee:

NIPPON TELEGRAPH & TELEPHONE

International Classes:

G02F1/13; C07D213/80; C09K19/34; C09K19/46; (IPC1-7): C07D213/80; C09K19/34; C09K19/46; G02F1/13

Attorney, Agent or Firm:

Hiroshi Nakamoto (2 outside)

Next Patent: PRODUCTION OF CYANO-PHENYLPYRIDINES