Pyran compound or at least one derivative thereof

An allyl compound of the formula IV-Bb

• wherein
• a is zero and b is 1 or a is 1 and b is zero or a and b are both 1;
• X11a is chlorine, bromine, iodine, a sulfonic acid radical, —OH, alkoxy or O-aralkyl, or —X11a is ═O;
• R11 is H, an alkyl radical having from 1 to 15 carbon atoms optionally mono- or polysubstituted, identically or differently, by halogen or —CN, wherein optionally one or more CH2 groups in this radical may be replaced by —C≡C—, —CH═CH—, —O—, —S—, —C(O)—O— and/or —O—C(O)— in such a way that hetero atoms O and S are not linked directly to one another;
• Z11 is a single bond, —CH2—, —CH2CH2—, —CF2CH2—, —CH2CF2—, —CF2CF2—, —CH═CH— or —C≡C—;
• Z12 is a single bond, —CH2—, —CH2CH2—, —CF2CH2—, —CH2CF2— or —CF2CF2—;
• and
• A11 and A12, independently of one another, are

A compound of formula I

• wherein
• a, b, c, d and e are each, independently of one another, 0 or 1, and the sum of a+b+c+d+e is ≧1;
• W is —CH2— or —C(═O)—;
• R11 is an alkyl radical having 1 to 15 carbon atoms optionally mono- or polysubstituted, identically or differently, by halogen or —CN, wherein optionally, one or more CH2 groups in this radical may be replaced by —C≡C—, —CH═CH—, —S—, —C(O)—O— and/or —O—C(O)— in such a way that hetero atoms O and S are not linked directly to one another;
• R12 is H, halogen, —CN, —NCS, aralkyl, O-aralkyl or an alkyl radical having from 1 to 15 carbon atoms optionally mono- or polysubstituted, identically or differently, by halogen or —CN, wherein optionally, one or more CH2 groups in this radical may be replaced by —C≡C—, —CH═CH—, —O—, —S—, —C(O)—O— and/or —O—C(O)— in such a way that hetero atoms O and S are not linked directly to one another;
• Z11 is a single bond, —CH2—, —CH2CH2—, —CF2CH2—, —CH2CF2—, —CF2CF2—, —CH═CH— or —C≡C—;
• Z12 is a single bond, —CH2—, —CH2CH2—, —CF2CH2—, —CH2CF2— or —CF2CF2—;
• Z13, Z14 and Z15 are each, independently of one another, a single bond, —CH2CH2—, —CF2CH2—, —CH2CF2—, —CF2CF2—, —CH═CH—, —C≡C—, —CH2O—, —CF2O—, —C(O)— or —C(O)—O—;
• A11 and A12, independently of one another, are
• A13 and A14, independently of one another, are
• A15 is
• or
• A15-R12 together are
• or
• Z13-[-A13-Z14-]c[-A14-Z15-]d-[-A15-]e-R12 is
• L17, L18 and L19, independently of one another, are H or F;
• q is 0, 1, 2, 3 or 4;
• p is 0, 1, 2 or 3;
• and
• R13 and R14, independently of one another, are an alkanyl radical having from 1 to 7 carbon atoms or together are an alkylene bridge having from 2 to 7 carbon atoms;
• with the provisos that:
• (a) if Z13 is directly linked to R12 to give —Z13—R12, then (i) Z13 is not —CH2O— or —CF2O—, and (ii) if Z13 is —C(═O)—O— or —C(═O)—, then R12 is H, aralkyl, alkanyl or alkenyl;
• (b) if Z14 is directly linked to R12 to give —Z14—R12, then (i) Z14 is not —CH2O— or —CF2O—, and (ii) if Z14 is —C(═O)—O— or —C(═O)—, then R12 is H, aralkyl, alkanyl or alkenyl;
• (c) if Z15 is directly linked to R12 to give —Z15—R12, then (i) Z15 is not —CH2O— or —CF2O—, and (ii) if Z15 is —C(═O)—O— or —C(═O)—, then R12 is H, aralkyl, alkanyl or alkenyl;
• and
• (d) R11 is not CH3 if a and b are both simultaneously zero, Z12 and Z13 are each a single bond, W is —CH2—, and -[-A13-Z14-]c-[-A14-Z15-]d-[-A15-]e—R12 is unsubstituted phenyl;
• wherein alkanyl is an unsaturated alkyl group which is optionally mono- or polysubstituted, identically or differently, by halogen or —CN.

A compound of formula I

• wherein
• a, b, c, d and e are each, independently of one another, 0 or 1, and the sum of a+b+c+d+e is ≧1;
• W is —CH2— or —C(═O)—;
• R11 is an alkyl radical having 1 to 15 carbon atoms optionally mono- or polysubstituted, identically or differently, by halogen or —CN, wherein optionally, one or more CH2 groups in this radical may be replaced by —C≡C—, —CH═CH—, —S—, —C(O)—O— and/or —O—C(O)— in such a way that hetero atoms O and S are not linked directly to one another;
• R12 is halogen, —CN, —NCS, aralkyl, O-aralkyl or an alkyl radical having from 1 to 15 carbon atoms optionally mono- or polysubstituted, identically or differently, by halogen or —CN, wherein optionally, one or more CH2 groups in this radical may be replaced by —C≡C—, —CH═CH—, —O—, —S—, —C(O)—O— and/or —O—C(O)— in such a way that hetero atoms O and S are not linked directly to one another;
• Z11 is a single bond, —CH2—, —CH2CH2—, —CF2CH2—, —CH2CF2—, —CF2CF2—, —CH═CH— or —C≡C—;
• Z12 is a single bond, —CH2—, —CH2CH2—, —CF2CH2—, —CH2CF2— or —CF2CF2—;
• Z13, Z14 and Z15 are each, independently of one another, a single bond, —CH2CH2—, —CF2CH2—, —CH2CF2—, —CF2CF2—, —CH═CH—, —C≡C—, —CH2O—, —CF2O—, —C(O)— or —C(O)—O—;
• A11 and A12, independently of one another, are
• A13 and A14, independently of one another, are
• A15 is
• or
• A15-R12 together are
• or
• Z13-[-A13-Z14-]c-[-A14-Z15-]d-[-A15-]e-R12 is
• L17, L18 and L19, independently of one another, are H or F;
• q is 0, 1, 2, 3 or 4;
• p is 0, 1, 2 or 3;
• and
• R13 and R14, independently of one another, are an alkanyl radical having from 1 to 7 carbon atoms or together are an alkylene bridge having from 2 to 7 carbon atoms;
• with the provisos that:
• (a) if Z13 is directly linked to R12 to give —Z13—R12, then (i) Z13 is not —CH2O— or —CF2O—, and (ii) if Z13 is —C(═O)—O— or —C(═O)—, then R12 is H, aralkyl, alkanyl or alkenyl;
• (b) if Z14 is directly linked to R12 to give —Z14—R12, then (i) Z24 is not —CH2O— or —CF2O—, and (ii) if Z14 is —C(═O)—O— or —C(═O)—, then R12 is H, aralkyl, alkanyl or alkenyl;
• (c) if Z15 is directly linked to R12 to give —Z15—R12, then (i) Z15 is not —CH2O— or —CF2O—, and (ii) if Z15 is —C(═O)—O— or —C(═O)—, then R12 is H, aralkyl, alkanyl or alkenyl;
• and
• (d) R11 is not CH3 if a and b are both simultaneously zero, Z12 and Z13 are each a single bond, W is —CH2—, and -[-A13-Z14-]c-[-A14-Z15-]d-[-A15-]e-R12 is unsubstituted phenyl;
• wherein alkanyl is an unsaturated alkyl group which is optionally mono- or polysubstituted, identically or differently, by halogen or —CN.

A compound of formula I

• wherein
• a is 1 and b is 0, or a is 0, and b is 1;
• c, d and e are each, independently of one another, 0 or 1;
• W is —CH2— or —C(═O)—;
• R11 is an alkyl radical having 1 to 15 carbon atoms optionally mono- or polysubstituted, identically or differently, by halogen or —CN, wherein optionally, one or more CH2 groups in this radical may be replaced by —C≡C—, —CH═CH—, —S—, —C(O)—O— and/or —O—C(O)— in such a way that hetero atoms O and S are not linked directly to one another;
• R12 is halogen, —CN, —NCS, aralkyl, O-aralkyl or an alkyl radical having from 1 to 15 carbon atoms optionally mono- or polysubstituted, identically or differently, by halogen or —CN, wherein optionally, one or more CH2 groups in this radical may be replaced by —C≡C—, —CH═CH—, —O—, —S—, —C(O)—O— and/or —O—C(O)— in such a way that hetero atoms O and S are not linked directly to one another;
• Z11 is a single bond, —CH2—, —CH2CH2—, —CF2CH2—, —CH2CF2—, —CF2CF2—, —CH═CH— or —C≡C—;
• Z12 is a single bond, —CH2—, —CH2CH2—, —CF2CH2—, —CH2CF2— or —CF2CF2—;
• Z13, Z14 and Z15 are each, independently of one another, a single bond, —CH2CH2—, —CF2CH2—, —CH2CF2—, —CF2CF2—, —CH═CH—, —C≡C—, —CH2O—, —CF2O—, —C(O)— or —C(O)—O—;
• A11 and A12, independently of one another, are
• A13 and A14, independently of one another, are
• A15 is
• A15-R12 together are
• or
• Z13-[-A13-Z14-]c-[-A14-Z15-]d-[-A15-]e-R12 is
• L17, L18 and L19, independently of one another, are H or F;
• q is 0, 1, 2, 3 or 4;
• p is 0, 1, 2 or 3;
• and
• R13 and R14, independently of one another, are an alkanyl radical having from 1 to 7 carbon atoms or together are an alkylene bridge having from 2 to 7 carbon atoms;
• with the provisos that:
• (a) if Z13 is directly linked to R12 to give —Z13—R12, then (i) Z13 is not —CH2O— or —CF2O—, and (ii) if Z13 is —C(═O)—O— or —C(═O)—, then R12 is H, aralkyl, alkanyl or alkenyl;
• (b) if Z14 is directly linked to R12 to give —Z14—R12, then (i) Z14 is not —CH2O— or —CF2O—, and (ii) if Z14 is —C(═O)—O— or —C(═O)—, then R12 is H, aralkyl, alkanyl or alkenyl;
• (c) if Z15 is directly linked to R12 to give —Z15—R12, then (i) Z15 is not —CH2O— or —CF2O—, and (ii) if Z15 is —C(═O)—O— or —C(═O)—, then R12 is H, aralkyl, alkanyl or alkenyl;
• and
• (d) R11 is not CH3 if a and b are both simultaneously zero, Z12 and Z13 are each a single bond, W is —CH2—, and -[-A13-Z14-]c-[-A14-Z15-]d-[-A15-]e—R12 is unsubstituted phenyl;
• wherein alkanyl is an unsaturated alkyl group which is optionally mono- or polysubstituted, identically or differently, by halogen or —CN.