A Morita–Baylis–Hillman Inspired Cross-Coupling Strategy for the Direct α-Arylation of Cyclic Enones
作者:Victoria Dimakos、Daniel P. Canterbury、Sebastien Monfette、Philipp C. Roosen、Stephen G. Newman
DOI:10.1021/acscatal.2c03448
日期:2022.10.7
Cyclic enone derivatives are important scaffolds in medicinal chemistry; methods that enable direct and selective C-arylations of these compounds have the potential to enable the rapid evaluation of pharmaceutically relevant molecules. Herein, a method for the direct, selective Pd-catalyzed α-arylation of cyclic enones with (hetero)aryl triflates is described. High-throughput screening identified the
环烯酮衍生物是药物化学中的重要支架;能够直接和选择性地对这些化合物进行 C-芳基化的方法有可能实现对药学相关分子的快速评估。在此,描述了一种用(杂)芳基三氟甲磺酸酯对环状烯酮进行直接、选择性的 Pd 催化 α-芳基化的方法。高通量筛选将联芳基膦 JohnPhos 和 CPhos 确定为最佳配体,将 DABCO 确定为必需添加剂,从而形成与传统 Mizoroki-Heck 方案下获得的区域异构体相反的区域异构体。初步机理研究表明,该反应通过烯酮活化进行,类似于 Morita-Baylis-Hillman 反应,然后是 Pd 催化的烯醇芳基化。假设钯催化剂具有双重作用: