双乙烯酮 、 3-丁基苯胺 在
苯 、 silica gel 、 二氯甲烷 、 乙酸乙酯 作用下,
以
苯 为溶剂,
反应 2.0h,
以yielded 8.5 g of m-(n-butyl)-acetylacetanilide in the form of an oil with a refractive index of nD 20 = 1.5355的产率得到N-(3-Butyl-phenyl)-3-oxo-butyramide
Novel crotonanilides of the formula ##STR1## wherein Z is selected from the group consisting of --O-- and --S--, R is selected from the group consisting of alkyl of 1 to 6 carbon atoms and optionally substituted phenyl, X and Y are individually selected from the group consisting of hydrogen, halogen, lower alkyl of 1 to 6 carbon atoms optionally substituted with at least one halogen, alkoxy of 1 to 3 carbon atoms, alkylthio and alkylsulfinyl of 1 to 6 carbon atoms, acyl of an organic carboxylic acid of 1 to 6 carbon atoms, --NO.sub.2 and --CF.sub.3, R.sub.1 is selected from the group consisting of hydrogen, chlorine, bromine, alkoxycarbonyl with 1 to 6 alkyl carbon atoms, nitro and alkylthio, alkylsulfinyl and alkylsulfonyl of 1 to 3 alkyl carbon atoms and R.sub.2 is alkyl of 1 to 6 carbon atoms, said compounds existing in the form of their E or Z isomers or mixtures thereof and having herbicidal properties.