Pyrazine derivative

Abstract

Abstract NEW MATERIAL:The compound of formula I (R is 1-18C straight or branched chain alkyl; j, k, l and m are 0 or 1; n is 1, 2 or 3; formula II is optically active carbon atom). EXAMPLE:(S)2-p-Octylbenzoyloxy-5-(2-methylbutyloxyphenyl)pyrazine. USE:A liquid crystal substance exhibiting chiral smectic phase and suitable as a display system utilizing the ferroelectric property, e.g. optical switching element, etc. It can be mixed to another compound to expand the temperature range exhibiting chiral smectic phase, adjust the pitch of the chiral smectic crystal or prevent the formation of reverse domain. PREPARATION:The compound of formula I can be produced by (1) reacting the compound of formula II with an alkyl halide having optically active carbon atom, (2) oxidizing the resultant compound of formula III to obtain the compound of formula IV, (3) reacting the product with glycinamide hydrochloride, and (4) reacting the obtained compound of formula V with the compound of formula VI.

Inventors

• 👤 Hiromichi Inoue
• 👤 博道 井上
• 👤 Shinichi Saito
• 👤 伸一 斉藤
• 👤 Kenji Terajima
• 👤 寺島　兼詞
• 👤 Takashi Inukai
• 👤 犬飼　孝
• 👤 Kenji Furukawa
• 👤 古川　顕治

Bibliographic Details