Substituted 4-amino-2-phenyl-2H-pyridazin-3-ones 5a-5j have been prepared from 4-amino-5-chloro-2-phenyl-2H-pyridazin-3-one 1 which on reactions with acetyl chloride or acetic anhydride gives 4-acetylamino derivative 2 or 4-diacetylamino derivative 3, respectively. Derivatives 2 and 3 with dialkylamines and cyclic amines yielded appropriate 4-acetylamino-5-(disubstituted amino)-2-phenyl-2H-pyridazin-3-ones 4a-4j. Subsequent alkaline hydrolysis of the acetylamino derivatives 4a-4j let to the title compounds 5a-5j, which were screened for pesticidal activity, but none of them reached activity of the used standards.
已制备出4-氨基-2-苯基-2H-吡啶并嗪-3-酮5a-5j,其通过4-氨基-5-氯-2-苯基-2H-吡啶并嗪-3-酮1与乙酰氯或乙酸酐反应制备而成,分别得到4-乙酰氨基衍生物2或4-二乙酰氨基衍生物3。衍生物2和3与二烷基胺和环状胺反应生成相应的4-乙酰氨基-5-(二取代氨基)-2-苯基-2H-吡啶并嗪-3-酮4a-4j。随后对乙酰氨基衍生物4a-4j进行碱性水解得到标题化合物5a-5j,这些化合物被用于杀虫活性筛选,但没有一个达到所使用标准的活性水平。