摘要 |
A compound of formula (I);;wherein Rf is —CF3, —C2F5, or —CF2CFXCF3; X is —F, or —OC3F7; Y is —H, —Cl, or —Br; R is —OH, —(CH2)nOH, —(OCH2CH2)mOH, —(CH2)n(OCH2CH2)mOH, —O—C(O)—R1, —(CH2)nO—C(O)—R1, —(OCH2CH2)mOC(O)—R1, —C(O)NHw(CH2CH2OH)2-w, —C≡N, —C≡CH, or —C(O)R2; n is 1 to 10; m is 1 to 10; R1 is C1 to C10 alkyl; R2 is —H, C1 to C10 alkyl, —Cl, or —OCH2CH2OH; a is 1 to 5; b is 1 to 5; and w is 0, 1 or 2. |