Functionalized β-lactams are highly important motifs in synthetic chemistry. We report an efficient and novel approach to the synthesis of β-lactams via a copper(I)-catalyzed cascade process involving C(benzyl)–H radical abstraction, intermolecular alkene addition, and intramolecular amination reaction. Variously substituted alkenes were synthesized from vinylacetic acid, leading to the corresponding
功能化的β-内酰胺类是合成
化学中非常重要的基序。我们报告了一种通过
铜(I)催化的级联过程,包括C(苄基)–H自由基抽象,分子间烯烃加成和分子内胺化反应的合成β-内酰胺的有效且新颖的方法。由
乙烯基乙酸合成各种取代的烯烃,以中等至良好的产率产生相应的β-内酰胺。初步研究表明,该反应通过Cu(I)/ Cu(II)/ Cu(III)催化循环经历自由基机理。