Expedious synthesis for α, β-unsaturated coumarin derivatives using boran chelates: A novel class of potential antibacterial and antioxidant agents
作者:Naceur Hamdi、Feten Bouabdallah、Antonio Romerosa、Rached Benhassen
DOI:10.1016/j.crci.2009.10.001
日期:2010.10
Résumé A new family of coumarin derivatives (4a–i) containing a chalcone moiety was synthesized by condensation of 3-acetyl-4-difluoro boryloxycoumarin (2) with aryl and heteroaryl aldehydes with piperidine in chloroform. Resulting compounds were characterized by IR, 13C, 1H NMR and UV visible spectroscopy. Compound 3-((2E)-3-(3,4,5-Trimethoxy-phenyl)prop-2-enoyl)-2(H)-chromen-2-one (4g) was characterized by single crystal X-ray diffraction. The antioxidant and antibacterial activities of the obtained compounds 4a-i was evaluated. The biological activity found for these compounds is discussed against their structural features, physical and chemical properties.
摘要 通过 3-乙酰基-4-二氟硼酰氧基香豆素 (2) 与芳基和杂芳基醛以及哌啶在氯仿中缩合,合成了含有查耳酮部分的新香豆素衍生物 (4a–i) 家族。所得化合物通过IR、13C、1H NMR和UV可见光谱进行表征。通过单晶X射线衍射表征了化合物3-((2E)-3-(3,4,5-三甲氧基-苯基)丙-2-烯酰基)-2(H)-苯并-2-酮(4g) 。评价所得化合物4a-i的抗氧化和抗菌活性。我们根据这些化合物的结构特征、物理和化学性质讨论了这些化合物的生物活性。