The reaction of phenylhydrazine with maleic acid anhydride and with citraconic acid anhydride was studied. The cyclic phenylhydrazides (1-phenyl-3-hydroxy-6-pyridazones) obtained in this way served as starting materials for the preparation of substituted 1-phenyl-6-pyridazones. Some of them show analgesic and antipyretic activity.
研究了苯
肼与
马来酸酐和
柠康酸酐的反应。以这种方式获得的环状苯基酰
肼(1-苯基-3-羟基-6-哒唑酮)用作制备取代的1-苯基-6-哒唑酮的起始原料。其中一些具有止痛和解热活性。