Title:
PHENYLDIOXANES
Document Type and Number:
WIPO Patent Application WO1991009026
Kind Code:
A3
Abstract:
PCT No. PCT/EP90/02132 Sec. 371 Date Feb. 12, 1991 Sec. 102(e) Date Feb. 12, 1991 PCT Filed Dec. 8, 1990 PCT Pub. No. WO91/09026 PCT Pub. Date Jun. 27, 1991.Phenyldioxanes of the formula I I wherein R1 is an alkyl or alkenyl residue each with up to 16 C atoms, wherein one or two non-adjacent CH2 groups of these residues may be replaced by -CO-O- or -O-CO-, Q1 and Q2 are each independently L1 and L2 are each independently F or H, and Y is Cl, F, CN, CF3, OCF3 or OCF2H, m and n is 0 or 1, are suitable as components of liquid crystal media.
Inventors:
COATES DAVID (GB)
GREENFIELD SIMON (GB)
SMITH GRAHAM (GB)
REIFFENRATH VOLKER (GB)
KRAUSE JOACHIM (GB)
PLACH HERBERT (GB)
GREENFIELD SIMON (GB)
SMITH GRAHAM (GB)
REIFFENRATH VOLKER (GB)
KRAUSE JOACHIM (GB)
PLACH HERBERT (GB)
Application Number:
PCT/EP1990/002132
Publication Date:
August 08, 1991
Filing Date:
December 08, 1990
Export Citation:
Assignee:
MERCK PATENT GMBH (DE)
International Classes:
G02F1/13; C07D319/06; C09K19/34; C09K19/42; (IPC1-7): C07D319/06; C09K19/34
Foreign References:
| DE3732284A1 | 1989-04-13 | |||
| EP0315014A2 | 1989-05-10 | |||
| DE3500897A1 | 1986-07-17 | |||
| DE3534646A1 | 1987-04-02 |
Other References:
Tetrahedron, vol. 44, no. 6, 1988, Pergamon Press plc, (GB), E. Kleinpeter et al.: "Liquid-crystalline behaviour of 2,5-disubstituted 1,3-dioxanes subject to the flexibility of terminal chains", pages 1609,1612
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