Title:
TERPHENYL COMPOUND AND LIQUID CRYSTAL COMPOSITION
Document Type and Number:
Japanese Patent JPH1149725
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject new compound useful as a ferroelectric display element and an antiferroelectric liquid crystal display element. SOLUTION: This compound is represented by formula I R is a 1-20C alkyl or alkoxy; six membered rings A, B and C are each formula II, etc.; R* is a group of formula III [R<1> is methyl, etc.; R<2> is a 1-15C alkyl; (m) is an integer of 1-16], e.g. (S)-4-n-heptyl-4"-(6-ethoxy-1-trifluoromethylhexyloxycarbonyl)-p- terphenyl. The compound of formula I is obtained by protecting, e.g. ethyl acetate with tetrahydropyranyl group, reducing and alkylating ester bond and eliminating a protecting group to afford an optically active alcohol and reacting borate of six membered ring A with para-bromo iodide to afford a halide having bicyclic structure, further converting the halide to boronic acid and reacting the boronic acid derivative with the halide corresponding to a six membered ring C to afford a compound having a core skeleton.
Inventors:
HARUFUJI TATSUJI
SAITO SHINICHI
OKABE EIJI
SAITO HIDEO
SAITO SHINICHI
OKABE EIJI
SAITO HIDEO
Application Number:
JP21995297A
Publication Date:
February 23, 1999
Filing Date:
July 31, 1997
Export Citation:
Assignee:
CHISSO CORP
International Classes:
C07C69/76; C07C69/94; C09K19/12; C09K19/46; (IPC1-7): C07C69/76; C07C69/94; C09K19/12; C09K19/46
Attorney, Agent or Firm:
Katsuhiko Nonaka
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