C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 25/18 (2006.01) C07C 17/12 (2006.01) C07C 17/26 (2006.01) C07C 17/269 (2006.01) C07C 25/24 (2006.01) C07C 43/225 (2006.01) C07C 69/74 (2006.01) C07C 69/76 (2006.01) C07C 255/50 (2006.01) C07C 323/04 (2006.01) C07C 331/28 (2006.01) C07D 211/18 (2006.01) C07D 213/26 (2006.01) C07D 239/24 (2006.01) C07D 239/26 (2006.01) C09K 19/04 (2006.01) C09K 19/12 (2006.01) C09K 19/14 (2006.01) C09K 19/16 (2006.01) C09K 19/30 (2006.01) C09K 19/34 (2006.01)
Patent
CA 2046590
- 61 - Abstract 1,4-Disubstituted 2,6-difluorobenzene compounds of the formula I Image I where R is an alkyl or alkenyl radical having 1 to 15 carbon atoms which is unsubstituted or at least monosubstituted by halogen, it also being possible for one or more CH2 groups in these radicals to be replaced, in each case in- dependently of one another, by -O-, -S-, Image , Image , -CO-, -CO-O-, -O-CO- or -O-CO-O- in such a manner that oxygen atoms are not linked directly to one another, A1 and A2, in each case independently of one another, are (a) a trans-1,4-cyclohexylene radical in which, in addition, one or more non-adjacent CH2 groups may be replaced by -O- and/or -S-, (b) a 1,4-phenylene radical in which, in addition, one or two CH groups may be replaced by N, (c) a radical from the group comprising 1,4-cyclo- hexenylene,1,4-bicyclo(2,2,2)octylene,piperi- dine-1,4-diyl,naphthalene-2,6-diyl,decahydro- naphthalene-2,6-diyl and 1,2,3,4-tetrahydro- naphahalene-2,6-diyl, it being possible for the radicals (a) and (b) to be substituted by CN or monosubstituted or disubstituted by -62- fluorine, Z1 and Z2 in each case independently of one another, are -CO-O-,-O-CO-,-CH2O-,-OCH2-, -CH2CH2-, -CH=CH-, -C?C- or a single bond, m and n in each case independently of one another, are 0, 1, 2 or 3, where (m+n) is 1, 2 or 3, and X has one of the meanings of R or is F, Cl, -CF3, -OCF3-, -OCF2H, -OC2F5, -CN or -NCS, with the proviso that at least one of the radicals Z1 and ZZ present in the molecule is -CO-O-, -O-CO-, -CH2-O-, -OCH2-, -CH2CH2-, -CH=CH- or -C?C and/or at least one of the radicals A1 and A2 present in the molecule is Image or Image and/or n is 1 or 2, where, in the case where -(Z2-A2)n = Image , X is F, Cl, -CF3, -OCF3, -OCF2H, -OC2F5, -CN or -NCS, are suitable as components of liquid-crystalline media.
Clemitson Robert W.
Coates David
Finkenzeller Ulrich
Greenfield Simon
Hittich Reinhard
Clemitson Robert W.
Coates David
Fetherstonhaugh & Co.
Finkenzeller Ulrich
Greenfield Simon
LandOfFree
1,4-disubstituted 2,6-difluorobenzene compounds, and a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with 1,4-disubstituted 2,6-difluorobenzene compounds, and a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 1,4-disubstituted 2,6-difluorobenzene compounds, and a... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1524787