To obtain a new liquid crystal compound stable to external environment and increasable a using temperature region and representable low voltage driving and quick response.
This compound is expressed by the formula {R1 is H, F, a 1-15C alkyl or the like; ring A1-A3 are each trans-1,4-cyclohexylene, 1,4- cyclohexenylene, 1,4-phenylene or the like; X1 is H or F; Y1 is H or a 1-15C alkyl; (1) is 1-10; (m) and (n) are each 0 or 1), e.g. 2,3-difluoro-1- ethoxy-4-[trans-4-(3-butenyl)cyclohexyl]benzene. The compound of the formula is obtained by, subjecting corresponding organic metal compound and a silacyclohexane compound to a coupling reaction in a case of the ring A1-A3 are each silacyclohexane ring, or subjecting a compound joined corresponding silane site with a halogen site to be affected with a metal or performing a silicon-carbon bonding reaction in a molecule.
KONDO TOMOYUKI
HENRY BERNHARD
MATSUI SHUICHI
TAKEUCHI HIROYUKI
KUBO YASUHIRO
TAKESHITA FUSAYUKI
NAKAGAWA ETSUO
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