Cycloalkanone derivatives

A compound of formula I

• 23
• wherein
• M1 and M2 are independently of each other C═CH—A1—(Z1—A2)m—R, and one of M1 and M2 is optionally, CH2, NR0, O or S,
• M3 is (CH2)k wherein one CH2 group is optionally replaced by NR0, O or S,
• k is 1, 2, 3 or 4,
• A1 and A2 are independently of each other:
• 1,4-phenylene in which, one or more CH groups are optionally replaced by N;
• 1,4-cyclohexylene in which one or two non-adjacent CH2 groups are optionally replaced by O and/or S;
• 1,3-dioxolane-4,5-diyl;
• 1,4-cyclohexenylene;
• piperidine-1,4-diyl;
• 1,4-bicyclo-(2,2,2)-octylene;
• naphthalene-2,6-diyl;
• decahydro-naphthalene-2,6-diyl;1,2,3,4-tetrahydronaphthalene-2,6-diyl;
• or indane-2,5-diyl;
• all these groups optionally being mono- or polysubstituted with L,
• L is halogen, CN, SCN, NO2, SF5 or an alkyl, alkoxy, alkylcarbonyl or alkoxycarbonyl group with 1 to 4 C atoms, wherein one or more H atoms may be substituted with F or Cl,
• Z is in each case independently —O—, —S—, —CO—, —COO—, —OCO—, —CO—NR0—, —NR0—CO—, —CH2CH2—, —CF2CF2—, —CH2CF2—, —OCH2—, —CH2O—, —SCH2—, —CH2S—, —CF2O—, —OCF2—, —CH═CH—, —CF═CF—, —CH═CF—, —(CH2)4—, —CH═CH—COO—, —OCO—CH═CH—, —OOC—CHR00—OOC—, —COO—CHR00—COO—, —C≡C— or a single bond,
• R0 is H or alkyl with 1 to 4 C atoms,
• R00 is straight chain or branched alkyl or alkoxy with 1 to 8 C atoms or phenyl that is optionally mono- or polysubstituted by L,
• m is 0, 1 or 2,
• R is H, halogen, NO2, CN, SCN, SF5, straight chain, branched or cyclic alkyl with 1 to 25 C atoms wherein one or more CH2 groups can also be replaced by —O—, —S—, —CO—, —NR0—, —CH═CH—, —C≡C— in such a manner that O and/or S atoms are not linked directly to one another, and wherein one or more H-atoms can also be replaced by F, Cl or phenyl that is optionally mono- or polysubstituted by L, or P—(Sp—X)n—,
• P is a polymerizable group,
• Sp is a spacer group with 1 to 20 C atoms,
• X has one of the meanings of Z, and
• n is 0 or 1.