| 摘要 |
The present invention provides a diacetylene derivative represented by the following formula (A) which exhibits liquid crystallinity by itself and has a large refractive index anisotropy or does not exhibit liquid crystallinity by itself but exhibits a large refractive index anisotropy when added to a liquid crystalline compound:
R1-Sp1-(Ar1)p-(Ar3)q-(Phe)r-C≡C—C≡C-(Phe)r-(Ar4)q-(Ar2)p-Sp2-R2 (A)
(wherein R1 and R2 are a hydrogen, halogen, cyano, isothiocyanate, alkyl, alkenyl, alkynyl or reactive group, SP1 and SP2 are each a spacer group, Ar1 and Ar2 are each a non-substituted or substituted aromatic carbocyclic or heterocyclic group, Ar3 and Ar4 are each a non-substituted or substituted heterocyclic group, Phe is a non-substituted or substituted 1,4-phenylene group, and p, q and r are each 0 or 1. |
| 主权项 |
1. A diacetylene derivative represented by the following formula (A)
R1-Sp1-(Ar1)p-(Ar3)q-(Phe)r-C≡C—C≡C-(Phe)r-(Ar4)q-(Ar2)p-Sp2-R2 (A)wherein R2 is a reactive group and R1 is hydrogen, halogen, cyano, isothiocyanate, alkyl having 1 to 15 carbon atoms, which is not substituted or is monosubstituted or polysubstituted with halogen, cyano, trifluoromethyl or a reactive group, alkenyl or alkynyl having 2 to 15 carbon atoms, which is not substituted or is monosubstituted or polysubstituted with halogen, cyano, trifluoromethyl or a reactive group, or a reactive group, wherein one or more non-adjacent —CH2— groups may be substituted with —O—, —CO—, —COO— and/or —OCO—; Sp1 and Sp2 are each independently —O—, —S—, —CO—, —COO—, —OCO—, —OCO—O—, —CO—NR3-, —NR3-CO—, —O(CH2)n—, —(CH2)nO—, —CH═CH—COO—, —OCO—CH═CH—, —(CH2)m—, —(SiR4R5-O)n— or a single bond, where m and n are each independently an integer of 1 to 10; R3, R4 and R5 are each independently hydrogen or alkyl having 1 to 4 carbon atoms; Ar1 and Ar2 are each independently an aromatic carbocyclic or heterocyclic group having up to 16 carbon atoms, which is not substituted or is monosubstituted or polysubstituted with halogen, cyano, trifluoromethyl, methyl, ethyl, methoxy or ethoxy and may include a condensed ring; Ar3 and Ar4 are each independently a heterocyclic group having up to 16 carbon atoms, which is not substituted or is monosubstituted or polysubstituted with halogen, cyano, trifluoromethyl, methyl, ethyl, methoxy or ethoxy and may include a condensed ring or be a plurality of heterocyclic groups connected via single bonds; Phe is 1,4-phenylene, which is not substituted or is monosubstituted or polysubstituted with halogen, cyano, trifluoromethyl, methyl, ethyl, methoxy or ethoxy; and p, q and r are each an integer of 0 or 1. |
