A green and efficient one pot three component protocol has been developed for the synthesis of naphthopyranopyrimidines, diazaanthra[2,3-d][1,3]dioxole-7,9-dione and tetrahydrobenzo[a]xanthen-11-ones in PEG-400 catalyzed by alum (KAl(SO4)2·12H2O). Single crystal X-ray diffraction studies have been performed for naphthopyranopyrimidine (5). The synthesized compounds were screened for in vitro antioxidant activity by DPPH scavenging assay and compounds 3 and 4 manifested profound antioxidant potential.
在
明矾(KAl(SO4)2-12H2O)的催化下,开发了一种在 P
EG-400 中合成
萘并
吡喃
嘧啶、二氮杂
蒽并[2,3-d][1,3]二恶茂-7,9-二酮和四氢苯并[a]
氧杂蒽-11-酮的绿色高效的一锅三组分方案。对
萘并
吡喃
嘧啶 (5) 进行了单晶 X 射线衍射研究。通过
DPPH 清除试验对合成的化合物进行了体外抗氧化活性筛选,结果表明化合物 3 和 4 具有很强的抗氧化潜力。