One-pot synthesis, characterization, and antioxidant capacity of sulfur- and oxygen-substituted 1,4-naphthoquinones and a structural study
作者:Nahide Gulsah Deniz、Mustafa Ozyurek、Ayse Nur Tufan、Resat Apak
DOI:10.1007/s00706-015-1517-5
日期:2015.12
one-pot synthesis of S,S- and S,O-substituted 1,4-naphthoquinones, their structural studies, and investigation of their antioxidant activity. The multicomponent reactions of 2,3-dichloro-1,4-naphthoquinone with sulfur- and oxygen-containing nucleophiles were investigated to obtain highly functionalized S,S- and S,O-substituted 1,4-naphthoquinone derivatives. All new compounds were characterized on the basis
摘要在本研究中,我们报道了一锅法合成S,S-和S,O取代的1,4-萘醌的结构,研究及抗氧化活性的研究。研究了2,3-二氯-1,4-萘醌与含硫和氧的亲核试剂的多组分反应,以获得高度官能化的S,S和S,O取代的1,4-萘醌衍生物。所有新化合物的特征均基于1 H,19 F和13C核磁共振波谱,质谱和傅里叶变换红外光谱。通过X射线衍射法测定了2,3-二氢-2-(羟甲基)萘并[2,3 - b ] -1,4-氧杂嘧啶-5,10-二酮的晶体结构。分别使用铜还原抗氧化剂容量法和DPPH方法筛选合成的化合物的抗氧化剂容量和清除自由基的活性。3-氯-2- [3-(3-氯-1,4-二氢-1,4-二氧萘萘-2-基氧基)丙基硫基] -1,4-萘醌显示最高的抗氧化能力,而氧化铜的抗还原能力为0.63, trolox当量抗氧化剂容量系数。 图形概要