The first Pd-catalyzed carbonylative couplings of aryl and vinyl halides with vinylogous enolates are reported generating products derived from C-C bond formation exclusively at the γ-position. Good results were obtained with a dienolate derivative of acetoacetate (1,3-dioxin-4-one). These transformations occurred at room temperature and importantly with only stoichiometric carbon monoxide in a two-chamber
据报道,第一个 Pd 催化的芳基和
乙烯基卤化物与
乙烯基烯醇化物的羰基化偶联产生了仅在 γ 位形成 CC 键的产物。使用
乙酰乙酸酯的二烯醇衍
生物 (1,3-dioxin-4-one) 获得了良好的结果。这些转变发生在室温下,重要的是在两室反应器中仅使用
化学计量的
一氧化碳。该方法用于合成他汀类的两个成员,通过 γ-选择性羰基化和顺式立体选择性还原 3,5-二羰基酸中间体生成顺式 3,5
-二醇酸基序。