Synthesis, Spectral Characterization, Cytotoxic, and Antimicrobial Activities of Some Novel Heterocycles Utilizing 1,3-Diphenylpyrazole-4-carboxaldehyde Thiosemicarbazone
作者:Sayed K. Ramadan、Hanan A. Sallam
DOI:10.1002/jhet.3232
日期:2018.8
A new series of heterocycles was synthesized via the reaction of readily obtainable 1,3‐diphenylpyrazole‐4‐carboxaldehyde thiosemicarbazone with many carbon electrophiles, for example, chloroacetic acid, chloroacetyl chloride, ethyl chloroacetate, dimethyl acetylenedicarboxylate, maleic anhydride, 3′‐nitro‐ω‐bromoacetophenone, malonic acid, acetylacetone, ethyl benzoylacetate, arylidene malononitrile
通过以下方法合成了一系列新的杂环易获得的1,3-二苯基吡唑-4-羧甲醛硫代半脲与许多碳亲电试剂的反应,例如氯乙酸,氯乙酰氯,氯乙酸乙酯,乙酰二羧酸二甲酯,马来酸酐,3'-硝基-ω-溴乙酰苯,丙二酸,乙酰丙酮,苯甲酰乙酸乙酯,亚芳基丙二腈和氰基乙酸乙酯试图构建咪唑啉酮,噻唑烷酮,噻唑和嘧啶衍生物。除了在不同条件下的闭环以外,还研究了标题化合物对水合肼的行为。此外,还讨论了与2-氯喹啉-3-甲醛和色酮-3-甲醛的反应。从其分析和光谱数据证实了所获得的所有产物的结构。