A Novel Palladium-Based Heterogeneous Catalyst for Tandem Annulation: A Strategy for Direct Synthesis of Acridones
作者:Darío C. Gerbino、H. Sebastián Steingruber、Pamela Mendioroz、M. Julia Castro、María A. Volpe
DOI:10.1055/s-0042-1751371
日期:2023.2
In order to develop an efficient, rapid, and modular cascade strategy for the direct synthesis of acridones, palladium supported on sulfated alumina and microwave activation are employed. Multifunctional heterogeneous palladium catalysts were prepared in order to carry out the sequential annulation via a Buchwald–Hartwig amination followed by an intramolecular annulation in a one-pot process. This
为了开发用于直接合成吖啶酮的高效、快速和模块化级联策略,采用负载在硫酸化氧化铝上的钯和微波活化。制备了多功能非均相钯催化剂,以通过 Buchwald-Hartwig 胺化进行顺序环化,然后在一锅法中进行分子内环化。这一新协议代表了第一份关于在无配体条件下从市售起始材料催化串联合成吖啶酮衍生物的报告。本方法的范围扩展到生成功能化吖啶酮文库,显示出高官能团兼容性,产率适中至极好。