| 摘要 |
Cyanophenyl uracil derivs. of formula (I) are new, excluding 1-(4-cyano-2-fluoro-5-methylthio-phenyl)- 3,6-dihydro-2,6-dioxo-3-methyl-4-trifluoromethyl-1 (2H)pyrimidine; 1-(4-cyano-2-fluoro-5-methoxycarbonylmethylthio-phenyl)-3,6-dihydro-2,6 -dioxo-3-methyl-4-trifluoromethyl-1(2H)-pyrimidine; and 1-(4-cyano-2-fluoro-5-(1-ethoxycarbonyl-ethylthio)-phenyl)- 3,6-dihydro-2,6-dioxo-3-methyl-4-trifluoromethyl-1(2H)-pyrimidine. Q = O, S, SO or SO2; R1 = H, CN or halo; R2 = alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heterocyclyl, heterocyclylalkyl (all opt. substd) or H; R3 = alkyl, alkoxy (both opt. substd), H or halo; R4 = opt. substd. alkyl; R5 = alkyl, alkoxy, alkenyl, alkynyl (all opt. substd) or H. |
