A palladium-catalyzed cascade reaction of β′-allenoate adducts with aryl/heteroaryl carboxamides through a vinylogous elimination/C–H functionalization/intramolecular allylation reaction sequence has been developed with high Z stereoselectivity. Various ring-fused dihydropyridinones bearing an α,β-unsaturated ester substituent are obtained. It is the first example of application of the allenoate adducts
通过
乙烯基消除/ CH功能化/分子内烯丙基化反应序列开发了
钯催化的β'-烯
丙酸酯加合物与芳基/杂芳基羧酰胺的级联反应,具有很高的Z立体选择性。得到了各种带有α,β-不饱和酯取代基的稠环
二氢吡啶并酮。这是将
脲基酸酯加合物作为难于获得的功能化电子缺陷型1,3,3-
丁二烯的实际前体,应用于C–H功能化环空的第一个例子。使用空气作为终端氧化剂在环保方面也显示出巨大的优势。