M-halogen-substituted metadioxane ester

Abstract

Abstract NEW MATERIAL:The 4-(5-alkyl-1,3-dioxane-2-yl)benzoic acid 3-halogenophenyl ester of formula I (R is H or 1-10C alkyl; X is F or Cl). EXAMPLE:4-(5-Butyl-1,3-dioxan-2-yl)benzoic acid 3-fluorophenyl ester. USE:A substance for liquid crystal display element. It has small positive dielectric anisotropy, high clear point, and low viscosity as well as high stability to moisture, heat, light, etc. PROCESS:The compound of formula I can be prepared by reacting 4-(5-alkyl-1,3- dioxan-2-yl)benzoic acid chloride of formula II with 3-halogenophenol of formula IIIin the presence of pyridine.

Inventors

• 👤 Shigeru Sugimori
• 👤 滋 杉森
• 👤 Yasuyuki Goto
• 👤 泰行 後藤
• 👤 Tetsuhiko Kojima
• 👤 哲彦 小島
• 👤 Toyoshirou Isoyama
• 👤 磯山　豊志郎
• 👤 Masahiro Fukui
• 👤 福井　優博

Bibliographic Details