Palladium-Catalyzed Formal [4 + 1] Annulation via Metal Carbene Migratory Insertion and C(sp<sup>2</sup>)–H Bond Functionalization
作者:Shuai Xu、Ri Chen、Zihao Fu、Qi Zhou、Yan Zhang、Jianbo Wang
DOI:10.1021/acscatal.6b03562
日期:2017.3.3
A highly efficient and operationally simple palladium-catalyzed formal [4 + 1] annulation reaction has been developed. The reaction is featured by the formation of two different C–C bonds on a carbenic center. It represents a concise method for the synthesis of a wide range of polycyclic aromatic hydrocarbons (PAHs) and 1H-indenes with easily available (trimethylsilyl)diazomethane as the carbene source
已经开发出了一种高效且操作简单的钯催化的正[4 +1]环化反应。该反应的特征是在羧基中心上形成两个不同的C–C键。它代表了一种简便的方法,用于合成多种多环芳烃(PAH)和1 H-茚,并以易于获得的(三甲基甲硅烷基)重氮甲烷作为卡宾源。金属卡宾迁移插入和C(sp 2)–H键活化被提议为该转变的关键步骤。该反应进一步证明了与各种过渡金属催化的转化结合的基于卡宾的偶联的多功能性。