618 Bull. Chem. Soc. Jpn., 75, No. 3 (2002)
Liquid Crystal Containing a Triazine Unit
late (10c) (150 mg, 0.12 mmol), freshly distilled triethylamine (1
mL) and anhydrous toluene (12 mL) was degassed and stirred at
60 °C for 22 h under argon. After cooling to room temperature,
the mixture was evaporated, washed with saturated aqueous
NH4Cl, and extracted with chloroform. The combined extracts
were washed with water, and brine, and then dried over anhydrous
Na2SO4 and evaporated. The product was purified by column
chromatography (SiO2, eluent, hexane/CHCl3 = 1/5) and repre-
cipitation (chloroform/methanol) to afford a white powder of pure
1c. Compound 1c (90%). 1H NMR (300MHz, CDCl3) δ 0.88 (t,
18 H, J = 6.6 Hz, CH3), 1.26 (br, 156 H, CH2), 1.80 (quint, 12 H,
J = 6.6 Hz, CH), 3.98 (t, 12 H, J = 6.6 Hz, CH2O), 6.86–7.70 (m,
4
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5
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a) E. B. Merkushev, A. N. Novikov, S. S. Makarchenko, A.
6
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72 H, arom), 9.24 (s, 9 H, arom). IR (KBr) 1750, 2210 cm−1
.
7
a) L. Yu and Z. Bao, Adv. Mater., 6, 156 (1994), and refer-
Anal. Calcd for C252 H279 N3O24 (3733.99): C 81.06, H 7.53, N
1.13%; found: C 80.80, H 7.35, N 1.35%.
ences cited therein. b) T. Maddux, W. Li, and L. Yu, J. Am. Chem.
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We acknowledge financial support for this work from the
JSPS (Japan Society for the Promotion of Science) support.
8
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