Claims
- 1. A reactive liquid crystal compound of formula III
- R.sup.1 --P--X--A.sup.3 --Z--A.sup.4 --R.sup.2 III
- wherein
- R.sup.1 is CH.sub.2 .dbd.CW--COO-- or HS--CH.sub.2 --(CH.sub.2).sub.m --COO--;
- W is H, Cl or alkyl with 1-5 C atoms;
- m is 1-7;
- P is alkylene with up to 12 C atoms wherein one or more non-adjacent CH.sub.2 groups can be replaced by --O--;
- X is --O--, --S--, --COO--, --OCO-- or a single bond;
- R.sup.2 is an alkyl radical with up to 15 C atoms which is unsubstituted, mono- or polysubstituted by halogen, wherein one or more CH.sub.2 groups can be replaced, in each case independently of one another, by --O--, --S--, --CO--, --OCO--, --CO--O-- or --O--CO--O-- in such a manner that oxygen atoms are not linked directly to one another, --CN, --Cl or --F, or
- R.sup.2 has one of the meanings given for R.sup.1 --P--X--;
- A.sup.3 is 1,4-phenylene or naphthalene-2,6-diyl, in each case being unsubstituted or substituted with 1 to 4 halogen atoms;
- A.sup.4 is ##STR101## wherein in each case 1,4-phenylene can be substituted by CN or halogen, and one of the 1,4-phenylene groups in (a) or (b) can also be replaced by a 1,4-phenylene radical in which one or two CH groups are replaced by N; and
- Z is --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 -- or a single bond;
- wherein at least one of A.sup.3 and A.sup.4 is substituted by at least one halogen atom.
- 2. A reactive liquid crystal compound of formula III
- R.sup.1 --P--X--A.sup.3 --Z--A.sup.4 --R.sup.2 III
- wherein
- R.sup.1 is CH.sub.2 .dbd.CW--COO-- or HS--CH.sub.2 --(CH.sub.2).sub.m --COO--;
- W is H, Cl or alkyl with 1-5 C atoms;
- m is 1-7;
- P is alkylene with up to 12 C atoms wherein one or more non-adjacent CH.sub.2 groups can be replaced by --O--;
- X is --O--, --S--, --COO--, --OCO-- or a single bond;
- R.sup.2 is an alkyl radical with up to 15 C atoms which is unsubstituted, mono- or polysubstituted by halogen, wherein one or more CH.sub.2 groups can be replaced, in each case independently of one another, by --O--, --S--, --CO--, --OCO--, --CO--O-- or --O--CO--O-- in such a manner that oxygen atoms are not linked directly to one another, --CN, --Cl or --F, or
- R.sup.2 has one of the meanings given for R.sup.1 --P--X--;
- A.sup.3 is 1,4-phenylene or naphthalene-2,6-diyl, in each case being unsubstituted or substituted with 1 to 4 halogen atoms;
- A.sup.4 is ##STR102## wherein in each case 1,4-phenylene can be substituted by CN or halogen, and one of the 1,4-phenylene groups can also be replaced by a 1,4-phenylene radical in which one or two CH groups are replaced by N; and
- Z is --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 -- or a single bond.
- 3. A reactive liquid crystal compound of formula III
- R.sup.1 --P--X--A.sup.3 --Z--A.sup.4 --R.sup.2 III
- wherein 0
- R.sup.1 is CH.sub.2 .dbd.CW--COO-- or HS--CH.sub.2 --(CH.sub.2).sub.m --COO--;
- W is H, Cl or alkyl with 1-5 C atoms;
- m is 1-7;
- P and P' are, in each case independently, alkylene with up to 12 C atoms wherein one or more non-adjacent CH.sub.2 groups can be replaced by --O--;
- X and X' are, in each case independently, --O--, --S--, --COO--, --OCO-- or a single bond;
- R.sup.2 is an alkyl radical with up to 15 C atoms which is unsubstituted, mono- or polysubstituted by halogen, wherein one or more CH.sub.2 groups can be replaced, in each case independently of one another, by --O--, --S--, --CO--, --OCO--, --CO--O-- or --O--CO--O-- in such a manner that oxygen atoms are not linked directly to one another, --CN, --Cl or --F, or
- R.sup.2 is R.sup.1 --P'--X'--, wherein at least one of P' and X' is different from P and X, respectively;
- A.sup.3 is 1,4-phenylene or naphthalene-2,6-diyl, in each case being unsubstituted or substituted with 1 to 4 halogen atoms;
- A.sup.4 is ##STR103## wherein the 1,4-phenylene can be substituted by CN or halogen, and one or two CH groups of the 1,4-phenylene can be replaced by N; and
- Z is --CH.sub.2 CH.sub.2 --.
- 4. A compound according to claim 1 wherein said compound is of formulae III1-III20
- R.sup.1 --P--X--Phe'--Z--Phe"--R.sup.2 III1
- R.sup.1 --P--X--Phe'--Z--Pyd--Phe"--R.sup.2 III2
- R.sup.1 --P--X--Phe'--Z--Pyr--Phe"--R.sup.2 III3
- R.sup.1 --P--X--Phe'--Z--Phe"--Pyd--R.sup.2 III4
- R.sup.1 --P--X--Phe'--Z--Phe"--Pyr--R.sup.2 III5
- R.sup.1 --P--X--Phe'--Z--Phe"--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III6
- R.sup.1 --P--X--Phe'--Z--Pyd--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III7
- R.sup.1 --P--X--Phe'--Z--Pyr--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III8
- R.sup.1 --P--X--Phe'--Z--Phe"--CH.sub.2 CH.sub.2 --Pyd--R.sup.2 III9
- R.sup.1 --P--X--Phe'--Z--Phe"--CH.sub.2 CH.sub.2 --Pyr--R.sup.2 III10
- R.sup.1 --P--X--Nap'--Z--Phe"--Phe"--R.sup.2 III11
- R.sup.1 --P--X--Nap'--Z--Pyd--Phe"--R.sup.2 III12
- R.sup.1 --P--X--Nap'--Z--Pyr--Phe"--R.sup.2 III13
- R.sup.1 --P--X--Nap'--Z--Phe"--Pyd--R.sup.2 III14
- R.sup.1 --P--X--Nap'--Z--Phe"--Pyr--R.sup.2 III15
- R.sup.1 --P--X--Nap'--Z--Phe"--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III16
- R.sup.1 --P--X--Nap'--Z--Pyd--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III17
- R.sup.1 --P--X--Nap'--Z--Pyr--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III18
- R.sup.1 --P--X--Nap'--Z--Phe"--CH.sub.2 CH.sub.2 --Pyd--R.sup.2 III19
- R.sup.1 --P--X--Nap'--Z--Phe"--CH.sub.2 CH.sub.2 --Pyr--R.sup.2 III20
- wherein
- Phe' is a 1,4-phenylene group ##STR104## X.sup.3 -X.sup.6 are, independently from each other, H or halogen; Phe" is a 1,4-phenylene group, which is unsubstituted or mono- or polysubstituted by CN or halogen;
- Nap' is a naphthalene-2,6-diyl group ##STR105## which is unsubstituted or wherein up to 4 of X.sup.4 -X.sup.12 are independently from each other halogen, while the other denote H;
- R.sup.1 is CH.sub.2 .dbd.CW--COO-- or HS--CH.sub.2 --(CH.sub.2).sub.m --COO--;
- W is H, Cl or alkyl with 1-5 C atoms;
- m is 1-7;
- R.sup.2 is an alkyl radical with up to 15 C atoms which is unsubstituted, mono- or polysubstituted by halogen, wherein one or more CH.sub.2 groups can be replaced, in each case independently of one another, by --O--, --S--, --CO--, --OCO--, --CO--O-- or --O--CO--O-- in such a manner that oxygen atoms are not linked directly to one another, --CN, --Cl or --F, or
- R.sup.2 has one of the meanings given for R.sup.1 --P--X--; and
- Z is --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 -- or a single bond;
- wherein at least one of the rings is substituted by at least one halogen atom.
- 5. A compound according to claim 2, wherein said compound is of the following formulae:
- R.sup.1 --P--X--Ph3'--Z--Phe"--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III6
- R.sup.1 --P--X--Phe'--Z--Pyd--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III7
- R.sup.1 --P--X--Phe'--Z--Pyr--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III8
- R.sup.1 --P--X--Phe"--Z--Phe"--CH.sub.2 CH.sub.2 --Pyd--R.sup.2 III9
- R.sup.1 --P--X--Phe'--Z--Phe"--CH.sub.2 CH.sub.2 --Pyr--R.sup.2 III10
- R.sup.1 --P--X--Nap'--Z--Phe"--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III16
- R.sup.1 --P--X--Nap'--Z--Pyd--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III17
- R.sup.1 --P--X--Nap'--Z--Pyr--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III18
- R.sup.1 --P--X--Nap'--Z--Phe"--CH.sub.2 CH.sub.2 --Pyd--R.sup.2 III19
- R.sup.1 --P--X--Nap'--Z--Phe"--CH.sub.2 CH.sub.2 --Pyr--R.sup.2 III20
- wherein Phe' is a 1,4-phenylene group ##STR106## X.sup.3 -X.sup.6 are, independently from each other, H or halogen; Phe" is a 1,4-phenylene group, which is unsubstituted or mono- or polysubstituted by CN or halogen;
- Nap' is a naphthalene-2,6-diyl group ##STR107## which is unsubstituted or wherein up to 4 of X.sup.4 --X.sup.12 are independently from each other halogen, while the other denote H;
- R.sup.1 is CH.sub.2 .dbd.CW--COO-- or HS--CH.sub.2 --(CH.sub.2).sub.m --COO--;
- W is H, Cl or alkyl with 1-5 C atoms;
- m is 1-7;
- R.sup.2 is an alkyl radical with up to 15 C atoms which is unsubstituted, mono- or polysubstituted by halogen, wherein one or more CH.sub.2 groups can be replaced, in each case independently of one another, by --O--, --S--, --CO--, --OCO--, --CO--O-- or --O--CO--O-- in such a manner that oxygen atoms are not linked directly to one another, --CN, --Cl or --F, or
- R.sup.2 has one of the meanings given for R.sup.1 --P--X--; and
- Z is --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 -- or a single bond.
- 6. A compound of formulae III2-III20
- R.sup.1 --P--X--Phe'--Z--Pyd--Phe"--R.sup.2 III2
- R.sup.1 --P--X--Phe'--Z--Pyr--Phe"--R.sup.2 III3
- R.sup.1 --P--X--Phe'--Z--Phe"--Pyd--R.sup.2 III4
- R.sup.1 --P--X--Phe'--Z--Phe"--Pyr--R.sup.2 III5
- R.sup.1 --P--X--Phe'--Z--Phe"--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III6
- R.sup.1 --P--X--Phe'--Z--Pyd--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III7
- R.sup.1 --P--X--Phe'--Z--Pyr--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III8
- R.sup.1 --P--X--Phe'--Z--Phe"--CH.sub.2 CH.sub.2 --Pyd--R.sup.2 III9
- R.sup.1 --P--X--Phe'--Z--Phe"--CH.sub.2 CH.sub.2 --Pyr--R.sup.2 III10
- R.sup.1 --P--X--Nap'--Z--Phe"--Phe"--R.sup.2 III11
- R.sup.1 --P--X--Nap'--Z--Pyd--Phe"--R.sup.2 III12
- R.sup.1 --P--X--Nap'--Z--Pyr--Phe"--R.sup.2 III13
- R.sup.1 --P--X--Nap'--Z--Phe"--Pyd--R.sup.2 III14
- R.sup.1 --X--Nap'--Z--Phe"--Pyr--R.sup.2 III15
- R.sup.1 --X--Nap'--Z--Phe"--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III16
- R.sup.1 --P--X--Nap'--Z--Pyd--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III17
- R.sup.1 --P--X--Nap'--Z--Pyr--CH.sub.2 CH.sub.2 --Phe"--R.sup.2 III18
- R.sup.1 --P--X--Nap'--Z--Phe"--CH.sub.2 CH.sub.2 --Pyd--R.sup.2 III19
- R.sup.1 --P--X--Nap'--Z-Phe"--CH.sub.2 CH.sub.2 --Pyr--R.sup.2 III20
- wherein
- Phe' is a 1,4-phenylene group ##STR108## X.sup.3 -X.sup.6 are, independently from each other, H or halogen; Phe" is a 1,4-phenylene group, which is unsubstituted or mono- or polysubstituted by CN or halogen;
- Nap' is a naphthalene-2,6-diyl group ##STR109## which is unsubstituted or wherein up to 4 of X.sup.4 -X.sup.12 are independently from each other halogen, while the other denote H;
- R.sup.1 is CH.sub.2 .dbd.CW--COO-- or HS--CH.sub.2 --(CH.sub.2).sub.m --COO--;
- P is, in each case independently, alkylene with up to 12 C atoms wherein one or more non-adjacent CH.sub.2 groups can be replaced by --O--;
- X is, in each case independently, --O--, --S--, --COO--, --OCO-- or a single bond;
- W is H, Cl or alkyl with 1-5 C atoms;
- m is 1-7;
- R.sup.2 is an alkyl radical with up to 15 C atoms which is unsubstituted, mono- or polysubstituted by halogen, wherein one or more CH.sub.2 groups can be replaced, in each case independently of one another, by --O--, --S--, --CO--, --OCO--, --CO--O-- or --O--CO--O-- in such a manner that oxygen atoms are not linked directly to one another, --CN, --Cl or --F, or
- R.sup.2 has one of the meanings given for R.sup.1 --P--X--; and
- Z is --CO--O--, --O--CO--, --CH.sub.2 CH.sub.2 -- or a single bond.
- 7. A compound according to claim 6, wherein said compound is of formula ##STR110## wherein Y.sup.1 is, independently from each other, CH.sub.2 .dbd.CW.sup.1 --COO-- or HS--CH.sub.2 --(CH.sub.2).sub.m COO--,
- V.sup.1 is, independently from each other, --O--, --COO--, --OOC--, --S-- or a single bond,
- W.sup.1 is, independently from each other, H, Cl or CH.sub.3,
- n is, independently from each other, 2-12,
- m is, independently from each other 1-7, and ##STR111## is, independently from each other, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene.
- 8. A compound according to claim 6, wherein said compound is of formula ##STR112## wherein Y.sup.2 is, independently from each other, CH.sub.2 .dbd.CHCOO-- or CH.sub.2 .dbd.C(CH.sub.3)--COO--;
- V.sup.2 is, independently from each other, --O-- or a single bond,
- n is, independently from each other 2-12, and ##STR113## is, independently from each other, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene.
- 9. A compound according to claim 6, wherein said compound is of formula ##STR114## wherein Y.sup.3 is, independently from each other, CH.sub.2 .dbd.CW.sup.3 COO-- or HSCH.sub.2 (CH.sub.2).sub.m --COO--,
- V.sup.3 is, independently from each other, --O--, --COO--, --OOC--, --S-- or a single bond,
- W.sup.3 is, independently from each other, H, Cl or CH.sub.3,
- a is 0 or 1,
- n is, independently from each other, 2-12,
- r is 1 or 2,
- m is, independently from each other, 1-7, and ##STR115## is, independently from each other, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene.
- 10. A reactive liquid crystal compound of formula III
- R.sup.1 --P--X--A.sup.3 --Z--A.sup.4 --R.sup.2 III
- wherein
- R.sup.1 is CH.sub.2 .dbd.CW--COO-- or HS--CH.sub.2 --(CH.sub.2).sub.m --COO--;
- W is H, Cl or alkyl with 1-5 C atoms;
- m is 1-7;
- P and P' are, in each case independently, alkylene with up to 12 C atoms wherein one or more non-adjacent CH.sub.2 groups can be replaced by --O--;
- X and X' are, in each case independently, --O--, --S--, --COO--, --OCO-- or a single bond;
- R.sup.2 is an alkyl radical with up to 15 C atoms which is unsubstituted, mono- or polysubstituted by halogen, wherein one or more CH.sub.2 groups can be replaced, in each case independently of one another, by --O--, --S--, --CO--, --OCO--, --CO--O-- or --O--CO--O-- in such a manner that oxygen atoms are not linked directly to one another, --CN, --Cl or --F, or
- R.sup.2 is R.sup.1 --P'--X'--;
- A.sup.3 is 1,4-phenylene or naphthalene-2,6-diyl, in each case being unsubstituted or substituted with 1 to 4 halogen atoms;
- A.sup.4 is ##STR116## wherein the 1,4-phenylene can be substituted by CN or halogen, and one or two CH groups are replaced by N; and
- Z is --CH.sub.2 CH.sub.2 --.
- 11. A compound of the following formulae: ##STR117## wherein Y.sup.3 is, independently from each other, CH.sub.2 .dbd.CW.sup.3 COO-- or HSCH.sub.2 (CH.sub.2).sub.m --COO--,
- V.sup.3 is, independently from each other, --O--, --COO--, --OOC--, --S-- or a single bond,
- W.sup.3 is, independently from each other, H, Cl or CH.sub.3,
- a is 0 or 1,
- n is, independently from each other, 2-12,
- r is 1 or 2,
- m is, independently from each other, 1-7, and ##STR118## is, independently from each other, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene; ##STR119## wherein Y.sup.4 is, independently from each other, CH.sub.2 .dbd.CW.sup.4 COO-- or HSCH.sub.2 (CH.sub.2).sub.m COO--,
- V.sup.4 is, independently from each other, --O--, --COO--, --OCO--, --S-- or a single bond,
- W.sup.4 is, independently from each other, H, CH.sub.3 or Cl,
- m is, independently from each other, 1-7,
- n is, independently from each other, 1-12,
- t is 0, 1 or 2, and ##STR120## is, independently from each other, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene; ##STR121## wherein Y.sup.5 is, independently from each other, CH.sub.2 .dbd.CW.sup.5 COO-- or HSCH.sub.2 (CH.sub.2).sub.m COO,
- V.sup.5 is, independently from each other, --O--, --COO--, --OCO--, --S-- or a single bond,
- W.sup.5 is, independently from each other, H, CH.sub.3 or Cl,
- n is, independently from each other, 1-12,
- m is 1-7,
- t is 1 or 2,
- u is 1 or 2,
- t+u is 2 or 3, and ##STR122## is, independently from each other, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene; or ##STR123## wherein Y.sup.7 is CH.sub.2 .dbd.CW.sup.7 COO-- or HSCH.sub.2 (CH.sub.2).sub.m COO--,
- Y.sup.8, independently of Y.sup.7, is Y.sup.7 or an alkyl group with 1-12 C atoms, which is optionally mono- or polysubstituted by F and/or Cl, and/or wherein one or two non-adjacent CH.sub.2 groups may be replaced by --CH.dbd.CH--, --O--, --CO--, --COO--, --OCO-- or --S--,
- V.sup.7 is, independently from each other, --O--, --COO--, --OOC--, --S-- or a single bond,
- W.sup.7 is, independently from each other, H, Cl or CH.sub.3,
- m is, independently from each other 1-7,
- b is, independently from each other 0-11, and
- B is ##STR124## with the proviso that in case both Y.sup.7 and Y.sup.8 are CH.sub.2 .dbd.CW.sup.7 COO--, B is ##STR125##
- 12. A compound of the formula ##STR126## wherein Y.sup.5 is, independently from each other, CH.sub.2 .dbd.CW.sup.5 COO-- or HSCH.sub.2 (CH.sub.2).sub.m COO,
- V.sup.5 is, independently from each other, --O--, --COO--, --OCO--, --S-- or a single bond,
- W.sup.5 is, independently from each other, H, CH.sub.3 or Cl,
- n is, independently from each other, 1-12,
- m is 1-7,
- t and u are, independently from each other 0, 1, or 2 with the proviso that t+u=1, 2 or 3, and ##STR127## is, independently from each other, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene,
- wherein at least one of ##STR128## is 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene.
- 13. A compound of the formula ##STR129## wherein Y.sup.4 is, independently from each other, CH.sub.2 .dbd.CW.sup.4 COO-- or HSCH.sub.2 (CH.sub.2).sub.m COO--,
- V.sup.4 is, independently from each other, --O--, --COO--, --OCO--, --S-- or a single bond,
- W.sup.4 is, independently from each other, H, CH.sub.3 or Cl,
- m is, independently from each other, 1-7,
- n is, independently from each other, 1-12,
- t is 0, 1 or 2, and ##STR130## is, independently from each other, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene,
- wherein at least one of ##STR131## is 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene.
- 14. A compound compound of the formula ##STR132## wherein Y.sup.4 is, independently from each other, CH.sub.2 .dbd.CW.sup.4 COO-- or HSCH.sub.2 (CH.sub.2).sub.m COO--,
- V.sup.4 is, independently from each other, --O--, --COO--, --OCO--, --S-- or a single bond,
- W.sup.4 is, independently from each other, H, CH.sub.3 or Cl,
- m is, independently from each other, 1-7,
- n is, independently from each other, 1-12,
- t is 1 or 2, and ##STR133## is, independently from each other, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene.
- 15. A compound according to claim 14, wherein said compound is of formula ##STR134## wherein W.sup.4 is, independently from each other, H, CH.sub.3 or Cl,
- n is, independently from each other, 1-12, and ##STR135## is, independently from each other, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene.
- 16. A compound according to claim 11, whereto said compound is of formula ##STR136## wherein Y.sup.5 is, independently from each other, CH.sub.2 .dbd.CW.sup.5 --COO-- or HSCH.sub.2 (CH.sub.2).sub.m COO,
- V.sup.5 is, independently from each other, --O--, --COO--, --OCO--, --S-- or a single bond,
- W.sup.5 is, independently from each other, H, CH.sub.3 or Cl,
- n is, independently from each other, 1-12,
- m is 0, 1-7,
- t is 0, 1 or 2,
- u is 1, or 2,
- t+u is 2 or 3, and ##STR137## is, independently from each other, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene.
- 17. A compound according to claim 16, wherein said compound is of formula ##STR138## wherein V.sup.5 is, independently from each other, --O--, --COO--, --OCO--, --S-- or a single bond,
- W.sup.5 is, independently from each other, H, CH.sub.3 or Cl,
- n is, independently from each other, 1-12, and ##STR139## is, independently from each other, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene or 2,3,6-trifluoro-1,4-phenylene.
- 18. A compound of the formula ##STR140## wherein Y.sup.7 is CH.sub.2 .dbd.CW.sup.7 COO-- or HSCH.sub.2 (CH.sub.2).sub.m COO--,
- Y.sup.8, independently of Y.sup.7, is Y.sup.7 or an alkyl group with 1-12 C atoms, which is optionally mono- or polysubstituted by F and/or Cl, and/or wherein one or two non-adjacent CH.sub.2 groups may be replaced by --CH.dbd.CH--, --O--, --CO--, --COO--, --OCO-- or --S--,
- V.sup.7 is, independently from each other, --O--, --COO--, --OOC--, --S-- or a single bond,
- W.sup.7 is, independently from each other, H, Cl or CH.sub.3,
- m is, independently from each other 1-7,
- b is, independently from each other 0-11, and
- B is ##STR141## with the proviso that in case both Y.sup.7 and Y.sup.8 are CH.sub.2 .dbd.CW.sup.7 COO--, B is ##STR142##
Priority Claims (1)
Number |
Date |
Country |
Kind |
92107137 |
Apr 1992 |
EPX |
|
Parent Case Info
This is a division of application Ser. No. 08/081,280 filed Jun. 25, 1993, which is a Rule 371 of PCT/EP93/00989 filed Apr. 23, 1993.
US Referenced Citations (18)
Foreign Referenced Citations (7)
Number |
Date |
Country |
0 313 053 |
Apr 1989 |
EPX |
0 484 972 |
May 1992 |
EPX |
0 488 116 |
Jun 1992 |
EPX |
0 506 176 |
Sep 1992 |
EPX |
41 04 183 |
Jul 1992 |
DEX |
9105029 |
Apr 1991 |
WOX |
9109092 |
Jun 1991 |
WOX |
Non-Patent Literature Citations (2)
Entry |
Siemensmeyer et al., Chemical Abstracts, vol. 124:19024 and 177196, 1996. |
Hikmet, Liquid Crystals, 10(6):835-847 (1991). |
Divisions (1)
|
Number |
Date |
Country |
Parent |
81280 |
Jun 1993 |
|