【摘要】 文章报道了一种以AgOTf催化2-羟基查尔酮和2-吲哚酮合成（E）-3-（2-苯基-4H-色烯-4-亚基）吲哚酮化合物的方法.该方法经历了迈克尔加成和分子内环化脱氢的串联反应,简便、快速、高产率地构筑了黄酮类衍生物.论文研究了催化剂和放大实验对于产率的影响,产物经¹H NMR、¹³C NMR、高分辨质谱和红外进行了表征.更多还原

【Abstract】 An efficient synthetic protocol for（E）-3-（2-phenyl-4H-chromen-4-ylidene） indolin-2-one catalyzed by AgOTf had been developed. The cascade approach used 2-hydroxychalcone and oxindole as raw materials, involving Michael addition followed by intramolecular cyclization and dehydrogenation sequence. This cascade approach has the advantages such as operational simplicity, short reaction time and excellent yields. The effects of catalysts and scaled-up experiment on the yields were investigated. The structures of the obtained compounds were characterized by ¹H NMR, ¹³C NMR, IR and HRMS.更多还原