acid-catalyzed Michael addition of enaminones to electron-deficient α-substituted cinnamic acids followed by lactamization, whereas the latter was synthesized by the same methodology except that cinnamic acids were replaced with coumarin 3-carboxylic acids. A unique regioselective reactivity of the enaminones toward different cinnamic acid derivatives is described.
                                    报道了一种合成结构多样的 3,4-
二氢吡啶酮和 2-
哌啶酮的有效策略。前者是通过将烯胺酮与缺电子α-取代的
肉桂酸进行酸催化迈克尔加成,然后进行内酰胺化来制备的,而后者是通过相同的方法合成的,只是
肉桂酸被
香豆素 3-
羧酸取代。描述了烯胺酮对不同
肉桂酸衍
生物的独特区域选择性反应性。