Phenylpropiolic acids. Part IX. Reaction of arylpropiolic acids with hydrazine and phenylhydrazine
作者:F. G. Baddar、M. F. El-Newaihy、M. R. Salem
DOI:10.1039/j39690000836
日期:——
Phenyl-, p-chlorophenyl-, and 3,4-methylenedioxyphenyl-propiolic acids react with hydrazine to give, in each case, a mixture of the corresponding pyrazol-5-one and azine. p-Methoxyphenyl-, and 3,4-dimethoxyphenyl-propiolic acids give azines only. Phenyl-, p-chlorophenyl-, and m-chlorophenyl-propiolic acids react with phenylhydrazine to give the corresponding 5-aryl-1-phenylpyrazol-3-ones.
在每种情况下,苯基- ,对-氯苯基-和3,4-亚甲基二氧基苯基-丙酸与肼反应,得到相应的吡唑-5-酮和嗪的混合物。对-甲氧基苯基-和3,4-二甲氧基苯基-丙酸仅产生嗪。苯基- ,p -chlorophenyl-,和米氯苯基-丙炔酸与苯肼反应,得到相应的5-芳基-1-苯基吡唑-3-酮。