Polystyrene‐Supported Palladium (Pd@PS)‐Catalyzed Carbonylative Annulation of Aryl Iodides Using Oxalic Acid as a Sustainable CO Source for the Synthesis of 2‐Aryl Quinazolinones
作者:Shankar Ram、Shaifali、Arvind Singh Chauhan、Sheetal、Ajay Kumar Sharma、Pralay Das
DOI:10.1002/chem.201902776
日期:2019.11.18
quinazolinones from o-carbamoyl/cyano aniline and aryl iodides using oxalic acid as a CO source under polystyrene supported palladium (Pd@PS) nanoparticles (NPs) catalyzed conditions has been developed. In this study, oxalic acid has been employed as safe, economic, environmentally benign, sustainable and bench-stable, solid CO surrogate under Double-Layer-Vial (DLV) system for the synthesis of 2-aryl quinazolinones
已开发了一种有效,方便的策略,在草酸作为CO源的聚苯乙烯负载的钯(Pd @ PS)纳米颗粒(NPs)催化条件下,由邻氨基甲酰基/氰基苯胺和芳基碘化物合成各种取代的喹唑啉酮。在这项研究中,草酸已被用作双层-小瓶(DLV)系统下安全,经济,环境友好,可持续和稳定的固体CO替代物,用于合成2-芳基喹唑啉酮。该方法不需要高压釜,微波等任何特殊的高压设备。此外,催化剂制备的简单程序,催化剂的可循环性,反应的易于处理,添加剂的生成和无碱的产生,具有优异的收率和良好的收率。底物范围是已开发协议的附加功能。