| 摘要 |
<p>PURPOSE:To provide a new compound capable of being profitably synthesized and safely used and excellent in the antibacterial activity and in the herbicidal activity. CONSTITUTION:A compound of formula I [X is O, S; R1 is (substituted) phenyl, (substituted) benzyl, (substituted) naphthyl, etc.; R2 is (substituted) phenyl, (substituted) naphthyl, (substituted) pyridyl; R3 is H, lower alkyl]. For example, 3-(2,6-dichlorophenyl)-5-(4-chlorophenylamino)-1,2,4-oxach-lorophenyl) -5-(4- chlorophenylamino)-1,2,4-oxadiazole. The compound of formula I is obtained e.g. by reacting a compound of formula II with a compound of formula III in the presence of an organic base such as triethylamine in a solvent such as methylene chloride.</p> |
