| 摘要 |
NEW MATERIAL:An imidazolium halide of formulaI:[R1 is alkyl or cycloalkyl group; A is lower alkylene group; r1 is H, alkyl or amino group; r2 and r3 form a benzimidazole ring together with the inidazole ring. or H; X is halogen; R2 is formula II: (R3 is amino, lower alkylamino group, etc.), formula III: (R4 is H or halogen; R5 is H, lower alkylcarbamoyl group, etc.)]. EXAMPLE:N-Undecyl-N'-(2,4-dichlorophenyl-carbamoylmethyl)-imidazolium bromide. USE:Agricultural and horticultural fungicides, particularly effective against blast of rice plants and helminthosporium leaf spot of corns, and acitive against fungi, e.g. human body pathogenic fungi, such as candida. etc. PROCESS:An imidazole derivative of formula IV is reacted with an alkyl halide of formula V to give the compound of formulaI. |
