Seven N-(pyridin-2-yl-carbonyl) aryl sulfonamides were synthesized from aryl sulfonamides and pyridin-2-yl-carboxylic acid, and their structures were confirmed by elemental analysis and 1H NMR . Some of the title comp...Seven N-(pyridin-2-yl-carbonyl) aryl sulfonamides were synthesized from aryl sulfonamides and pyridin-2-yl-carboxylic acid, and their structures were confirmed by elemental analysis and 1H NMR . Some of the title compounds showed moderate herbicidal activity.展开更多
Acylation of 2-amio-5-aryl-1,3,4-oxadiazoles with acyl chlorides and trichloroacetic acid to afford eleven new -N--[5-aryl-1,3,4-oxadiazol-2-yl]-substituted amides. The required oxadiazole precursors are prepared by o...Acylation of 2-amio-5-aryl-1,3,4-oxadiazoles with acyl chlorides and trichloroacetic acid to afford eleven new -N--[5-aryl-1,3,4-oxadiazol-2-yl]-substituted amides. The required oxadiazole precursors are prepared by oxidative cyclization of corresponding aldehyde semicarbazones. The structures of the synthesized compounds are elucidated by elemental analysis、 1HNMR、IR and MS. They are screened for their larvicidal activities against wild fruit and antibiotic activities.展开更多
文摘Seven N-(pyridin-2-yl-carbonyl) aryl sulfonamides were synthesized from aryl sulfonamides and pyridin-2-yl-carboxylic acid, and their structures were confirmed by elemental analysis and 1H NMR . Some of the title compounds showed moderate herbicidal activity.
文摘Acylation of 2-amio-5-aryl-1,3,4-oxadiazoles with acyl chlorides and trichloroacetic acid to afford eleven new -N--[5-aryl-1,3,4-oxadiazol-2-yl]-substituted amides. The required oxadiazole precursors are prepared by oxidative cyclization of corresponding aldehyde semicarbazones. The structures of the synthesized compounds are elucidated by elemental analysis、 1HNMR、IR and MS. They are screened for their larvicidal activities against wild fruit and antibiotic activities.
