摘要
本文采用从联苯出发，经酰化反应，卤仿反应制备联苯甲酸，后者与氯化亚砜反应，然后经过氨解，脱水制得氰基联苯，再经硝化、还原、重氮化、水解的路线制得４—羟基—４′—氰基联苯，总得率可达１５％以上，与从联苯酚出发的路线相比，成本降低约１５％。
The director distribution and retardation for electrically controlled birefringence cells are calculated based upon the elastic theory of liquid crystals The effects of weak anchoring boundary conditions on the director distribution and retardation are discussed The result of this paper is some reference value to design of electrically controlled birefringence cells
出处
《液晶与显示》
CAS
CSCD
1997年第2期84-90,共7页
Chinese Journal of Liquid Crystals and Displays
关键词
液晶
中间体
羟基
氰基联苯
合成
electrically controlled birefringence cell, director distribution, retardation, weak anchoring
