good to excellent yields by proceeding through a simple, mild, and efficient procedure including the reaction of enamines with substituted cinnamonitriles using DABCO, piperidine, or chitosan as catalysts. The regioorientation of Michael addition was established with no doubt using the 2D‐HMBC spectroscopy.
六氢
喹啉及其稠合衍
生物可通过简单,温和和有效的方法进行,包括使用
DABCO,
哌啶或脱乙酰壳
多糖作为催化剂,使烯胺与取代的
肉桂腈反应,从而获得高至优异的收率。毫无疑问,使用2D-HMBC光谱确定了迈克尔加成的区域取向。