Patent ID: 6974607

Claim:
A tetrahydropyran compound of formula I R 1 —(A 1 ) m —(Z 1 —A 2 ) n —(Z 2 —A 3 ) p —R 2 (I) in which R 1 is H, or an alkyl group having 1 to 12 C atoms, which is unsubstituted or substituted by at least one halogen atom, in which one or more non adjacent CH 2 -groups are optionally, each independently, replaced by —O—, —S—, —CO—, —CF 2 —, —CO—O—, —O—CO—, or —CH═CH—, R 2 is —CN, —NCS, —F, —SF 5 , —Cl, —OCHF 2 , —OCF 3 , —CF 3 , —OCF 2 CHFCF 3 , —OCHFCF 3 , or —OCF 2 CF 3 , A 1 , A 2 , A 3 are, each independently, a) trans-1,4-cyclohexylene, b) tetrahydropyran-2,5-diyl, c) 1,4-phenylene, in which one or more non adjacent CH-groups are optionally, each independently, replaced by N, or CF, d) 1,4-bicyclo[2.2.2]octylen, e) naphthaline-2,6-diyl, f) decahydronaphthaline-2,6-diyl, g) 1,2,3,4-tetrahydronaphthtaline-2,6-diyl, or h) 1,4-cyclohexenylene, wherein the groups listed under c), e), and g) are optionally substituted with —CN, —Cl, —F, —CF 3 , and/or —OCF 3 , and wherein at least one of the groups A 1 , A 2 , or A 3 is tetrahydropyran-2,5-diyl, Z 1 Z 2 are, each independently, —CO—O, —CH 2 O—, —O—CH 2 —, —CH 2 CH 2 —, —CH═CH—, —C≡C—, or a single bond, wherein at least one of the groups Z 1 or Z 2 is —CO—O—, and m, n, p are, each independently, 0, 1, 2 or 3, and m+n+p is 2, 3 or 4.