Patent ID: 6500503
Filing Date: 2002-12-31
Classification: C07C,C07D,C09K

Abstract:
A liquid crystalline compound represented by formula (1) wherein R1 represents hydrogen or C1-C15 alkyl in which one or more non-adjacent methylene may be replaced by oxygen, sulfur or â€”CH&boxH;CHâ€” and one or more hydrogen may be replaced by halogen; R2 represents hydrogen, cyano, halogen or C1-C15 alkyl in which one or more non-adjacent methylene may be replaced by oxygen, sulfur or â€”CH&boxH;CHâ€” and one or more hydrogen may be replaced by halogen; L represents halogen or hydrogen; A1, A2, A4 and A5 each independently represent trans-1,4-cyclohexylene or 1,4-phenylene, one or more â€”CH2â€” in the trans-1,4-cyclohexylene may be replaced by oxygen or sulfur, one or more &boxH;CHâ€” in the 1,4-phenylene may be replaced by nitrogen, and one or more hydrogen in the 1,4-phenylene ring may be replaced by halogen; A3represents trans-1,4-cyclohexylene in which one or more â€”CH2â€” may be replaced by oxygen or sulfur; Z1,Z2,Z3 and Z4 each independently represent â€”COOâ€”, â€”OCOâ€”, â€”CH2CH2â€”, â€”(CH2)4â€”, â€”CH2O â€”, â€”OCH2â€”, â€”CF2Oâ€”, â€”OCF2â€” or a single bond; Q represents â€”CF2CH2â€” or â€”CH2CF2â€”; and k, l, m and n each independently represent 0 or 1 with the condition of k+l+m+n&lE;2.