| 摘要 |
A naphthopyran compound represented by the formula;
B1 and B2 are selected independently from the group consisting of a phenyl, naphthyl, or heterocyclic aromatic group, or may combine to form one or more aromatic rings. B1 and B2 may further include one or more substituents. R3, R4, R5, R6, and R10 are selected independently from the group consisting of hydrogen, halogen, —Ra, —OH, —ORa, —O—CO—Ra, —CN, —NO2, —SO2Ra, —SORa, —SH, —SRa, —NH2, —NHRa, —NRaRa, or —NRbRc; or wherein R5 and R6 combine to form a cyclic group. Ra may include an alkyl, polycycloalkyl, alkenyl, polyalkenyl, haloalkyl, perhaloalkyl, alkynyl, polyalkynyl, hydroxyalkynyl, polyhydroxyalkynyl; or (C3-20)cycloalkyl group. Rb and Rc may include hydrogen or alkyl groups, or may combine to form a saturated heterocyclic group, or together with an adjacent phenyl group may form a julolidinyl group. R7 is a mesogenic group. And the naphthopyran, which may be referred to as a dichroic-photochromic compound, may be incorporated into an optical article. |
| 主权项 |
1. A naphthopyran compound represented by the formula (I) wherein B1 and B2 are selected independently from the group consisting of (i) a phenyl group, (ii) a naphthyl group, (iii) a heterocyclic aromatic group, and (iv) a combination thereof, or wherein B1 and B2 optionally combine to form one or more aromatic rings; wherein B1 and B2 are optionally substituted with one or more substitutents selected from the group consisting of halogen, —Ra, —OH, —ORa, —SH, —SRa, —SORa, —SO2Ra, —NRaRa, —NRbRc, —CN, —NO2, —CO—Ra, —O—CO—Ra, and —CO2Ra, wherein Ra is a linear or branched (C1-20) alkyl, (C3-20) cycloalkyl, (C4-20) polycycloalkyl linear or branched (C1-20) alkenyl, linear or branched (C1-20) polyalkenyl, linear or branched (C1-20) haloalkyl, perhaloalkyl group, linear or branched (C1-20) alkynyl, linear or branched (C1-20) polyalkynyl, linear or branched (C1-20) hydroxyalkynyl, linear or branched (C1-20) polyhydroxyalkynyl; Rb and Rc are independently selected from the group consisting of hydrogen and linear or branched (C1-20) alkyl groups, or wherein Rb and Rc combine to form a saturated 5- to 7-member heterocyclic group, or wherein Rb and Rc together and in combination with an adjacent phenyl group form a julolidinyl group; wherein R3 is selected from the group consisting of hydrogen, halogen, —Ra, —OH, —ORa, —CO2Me, CO2Et, —O—CO—Ra, —CN, —NO2, —SO2Ra, —SORa, —SH, —SRa, —NH2, —NHRa, —NRaRa, and —NRbRc; wherein R4, R5, R6, and R10 are selected independently from the group consisting of hydrogen, halogen, —Ra, —OH, —ORa, —O—CO—Ra, —CN, —NO2, —SO2Ra, —SORa, —SH, —SRa, —NH2, —NHRa, —NRaRa, and —NRbRc; or wherein R5 and R6 combine to form a cyclic group, and wherein R7 is a mesogenic group represented by one of the following formulas: wherein R8 is selected from the group consisting of hydrogen, halogen, —Ra, —OH, —ORa, —SH, —SRa, —NH2, —NRbRc, —CO—Ra, —O—CO—Ra, and —CO2Ra, wherein R9 is selected from the group consisting of hydrogen, halogen, —Ra, —OH, —ORa, —O—CO—Ra, —CN, —NO2, —SO2Ra, —SORa, —SH, —SRa, —NH2, —NHRa, —NRaRa, and —NRbRc; or wherein an R8 and R9 combine to form a cyclic group, wherein p is an integer from 0 to 5, wherein m is an integer from 0 to 4, wherein X1, X2 and X3, identical or different from each other, represent a covalent bond or linking unit selected from the group consisting of an ester, —Rd—, —O—, —ORd—, —ORdO—, —OCORd—, —OCORdO—, —S—, —CH═CH—, —CH═N—, —C≡C—, and —N═N—, wherein Rd is a linear or branched (C1-18) alkyl or a linear or branched (C1-18) haloalkyl group, and wherein Y is oxygen, nitrogen, or sulfur. |
