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Efficient green synthesis of N '-benzylidene-2-(2-fluorobiphenyl)propanehydrazides: crystal structure and anti-oxidant potential

机译:N'-亚苄基-2-(2-氟联苯)丙酰肼的高效绿色合成:晶体结构和抗氧化剂

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摘要

For the synthesis of N'-benzylidene-2-(2-fluorobiphenyl)propanehydrazides, 2-(2-fluorobiphenyl-4-yl)propanoic acid was esterified to methyl 2-(2-fluorobiphenyl-4-yl)propanoate under microwave irradiation followed by hydrazinolysis. This hydrazide was then reacted in an ultrasonic bath with different benzaldehydes to afford a series of N'-benzylidene-2-(2-fluorobiphenyl)propanehydrazides. Comparison of both the conventional and ultrasound assisted reactions indicates a significant reduction in reaction times and improvement in yields. Besides chemical characterisation and X-ray crystallography, all the synthesised compounds were evaluated for their anti-oxidant potential (total anti-oxidant activity, ferric reducing antioxidant power and total phenolic content) and most of them were found to have useful potential for pharmaceutical applications especially derivative bearing 2-hydroxy substituents.
机译:为了合成N'-亚苄基-2-(2-氟联苯)丙酰肼,在微波辐射下将2-(2-氟联苯-4-基)丙酸酯化为2-(2-氟联苯基-4-基)丙酸甲酯。然后进行肼解。然后使该酰肼在超声浴中与不同的苯甲醛反应,得到一系列的N'-亚苄基-2-(2-氟联苯)丙烷酰肼。常规反应和超声辅助反应的比较表明,反应时间显着减少,产率提高。除了化学表征和X射线晶体学分析外,还评估了所有合成化合物的抗氧化潜力(总抗氧化活性,三氧化二铁还原性抗氧化能力和总酚含量),并且发现其中大多数具有医药应用潜力特别是带有2-羟基取代基的衍生物。

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