Carbonylative Transformations Using a DMAP-Based Pd-Catalyst through Ex Situ CO Generation
作者:Pallabi Halder、Ashif Iqubal、Krishanu Mondal、Narottam Mukhopadhyay、Parthasarathi Das
DOI:10.1021/acs.joc.3c01725
日期:2023.11.3
aminocarbonylation and carbonylative Suzuki–Miyaura coupling has been developed using a novel palladium complex, [PdII(DMAP)2(OAc)2]. The complex was successfully synthesized using a stoichiometric reaction between PdII(OAc)2 and DMAP in acetone at room temperature and characterized using single-crystal X-ray analysis. Only 5 mol % catalyst loading was sufficient for effective carbonylative transformations. “Chloroform-COware”
使用新型钯配合物[Pd II (DMAP) 2 (OAc) 2 ]开发了一种无膦、高效的氨基羰基化和羰基化Suzuki-Miyaura偶联方案。该复合物是在室温下在丙酮中通过 Pd II (OAc) 2和 DMAP之间的化学计量反应成功合成的,并使用单晶 X 射线分析进行了表征。仅 5 mol% 的催化剂负载量就足以实现有效的羰基化转化。利用“氯仿-COware”化学方法,在两室装置中使用氯仿作为廉价的 CO 源,安全、轻松地插入羰基单元。利用该技术合成了CX-516、CX-546、farampator等多种增值药学相关化合物。此外,商业设计的 COware 被设计为 COware-RB 设置,用于连续一锅合成茚并异喹啉(拓扑异构酶 I 抑制剂)。