The palladium-catalyzed cross-coupling of o-allylic and o-vinylic anilides with vinylic halides and triflates produces substituted nitrogen heterocycles in good to high yields by a process involving vinylpalladium addition to the olefin, rearrangement to a π-allylpalladium intermediate and subsequent intramolecular nucleophilic displacement of palladium. Different reactivity and regioselectivity in the
钯催化的邻烯丙基和邻
乙烯基芳族酸酐与
乙烯基卤化物和
三氟甲磺酸酯的交叉偶联通过涉及将
乙烯基钯添加到烯烃中,重排至π-烯丙基
钯中间体以及随后的分子内的方法以良好的高收率产生取代的氮杂环。
钯的亲核取代。用不同的取代的烯基
苯甲酸酐观察到
钯迁移中的不同反应性和区域选择性。