Pyrimidine compound

Abstract

Abstract NEW MATERIAL:4,4''-Dialkyl-2,6,2'',6''-tetraaza-p-terphenyl of formula I (R1 and R2 are 1-10C alkyl). EXAMPLE:4-Pentenyl-4''-propyl-2,6,2'',6''-tetraaza-p-terphenyl. USE:Useful as a component of a liquid crystal material. It has high anisotropy of refractive index, low viscosity, broad liquid crystal temperature range, and excellent stability. It has high compatibility with other liquid crystal compounds, and is effective to improve the response characteristics, contrast, and sharpness, to extend the liquid crystal temperature range and to keep the threshold voltage when mixed with liquid crystal compounds such as biphenyl compound, ester compound, etc. PREPARATION:The compound of formula I can be produced by reacting p-(5-alkyl- 2-pyrimidinyl)benzonitrile of formula II with hydrogen chloride gas and then with ammonia gas, and reacting the resultant compound of formula III with the compound of formula IV in the presence of a catalyst.

Inventors

• 👤 Yoshimasa Kitano
• 👤 北野　喜誠
• 👤 Tetsuya Ogawa
• 👤 哲也 小川
• 👤 Yasuyuki Goto
• 👤 泰行 後藤
• 👤 Shigeru Sugimori
• 👤 滋 杉森

Bibliographic Details