申请人:Irisawa Masatomi
公开号:US20090103041A1
公开(公告)日:2009-04-23
A compound represented by the following general formula (I).
(In the formula, R
1
is hydrogen or C
1-8
alkyl; ring A is 1,4-phenylene, 1,4-trans-cyclohexylene, or 2,6-naphthylene; Z
1
and Z
2
each are —COO—, —OCO—, —CH
2
O—, —OCH
2
—, —CH
2
CH
2
—, —CH|CH—, —C≡C—, or a single bond; m is 1 or 2; n is 0 or 1; X
1
and X
2
each are C
1-3
alkyl or alkoxy or hydrogen, provided that when one of X
1
and X
2
is hydrogen, the other must not be hydrogen; Y
1
and Y
2
each are hydrogen, fluorine, or chlorine; Q is C
1-8
saturated or unsaturated alkyl in which all or part of the hydrogen atoms are replaced by a halogen atom; and L is oxygen atom or a single bond.)