New 2,6-di:fluoro:benzene derivs. with aromatic or heterocyclic gps.,

摘要

New 2,6-difluorobenzene cpds. of formula (I) are new. R1 = H or 1-15C alkyl (opt. with an asymmetric C), where 1 or 2 non-adjacent CH2 gps. may be replaced by -O-, -S-, -CO-, -CO-O-, -O-CO-, -CO-S-, -S-CO-, -O-CO-O-, -CH=CH-, -C?=C-, cyclopropane-1,2-diyl or -Si(CH3)2-, and 1 or more H in the alkyl may be substd. by F, Cl or CN; A1, A2, A3 = 1,4-phenylene, pyrazine-2,5-diyl, pyridine-2,5-diyl, or pyrimidine-2,5-diyl, in which 1 or 2 H may be replaced by F, trans-1,4-cyclohexylene, 1,4-cyclohexenylene, (1,3,4)-thiadiazole-2,5-diyl, 1,3-dioxane-2,5-diyl, naphthaline-2,6-diyl, bicyclo-(2.2.2)octane-1,4-diyl or 1,3-dioxaborinane-2,5-diyl; M1, M2, M3 = -CH2CH2-, -CH=CH-, -C?=C-, -CH2CH2CH2CH2-, -CH2CH2CH2-O-, -O-CH2CH2CH2-, -CH2CH2CO-O-, -O-CO-CH2CH2-, -CH2-O-, -O-CH2-, -CO-O- or -O-CO-; k, l, m, n, o, p = 0 or 1; k + m + o = greater that 0; and if M3 = -O-CO-; then R1-(-A1)k(-M1)l(-A2)m(-M2)n(-A3)o = or and if M3 = -CO-O-; then R1(-A1)k(-M1)l-(A2)m(-M2)n(-A3)o = or g = 0 or 1.