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
By using Fe 2(SO 4) 3·6H 2O/H 2SO 4 as the oxidation reagents for dehydrogenating aryl substituted semicarbazide to form azo compounds is described for first time.Eight azo compounds were prepared in excellent yi...By using Fe 2(SO 4) 3·6H 2O/H 2SO 4 as the oxidation reagents for dehydrogenating aryl substituted semicarbazide to form azo compounds is described for first time.Eight azo compounds were prepared in excellent yields under mild condition.This method only needs simple instrument and short reaction time.展开更多
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.
文摘By using Fe 2(SO 4) 3·6H 2O/H 2SO 4 as the oxidation reagents for dehydrogenating aryl substituted semicarbazide to form azo compounds is described for first time.Eight azo compounds were prepared in excellent yields under mild condition.This method only needs simple instrument and short reaction time.
