Data-Rich Experimentation Enables Palladium-Catalyzed Couplings of Piperidines and Five-Membered (Hetero)aromatic Electrophiles
作者:Aaron C. Sather、Theodore A. Martinot
DOI:10.1021/acs.oprd.9b00233
日期:2019.8.16
palladium-catalyzed C–N cross-coupling methodology, high-throughput experimentation was used to identify a catalyst capable of fusing piperidine-based nucleophiles with five-membered (hetero)aromatic bromides. A decomposition pathway for the standard electrophile was found, and a base screen was used to identify conditions that suppress this undesired transformation. Building on this, systematic optimization using
为了规避钯催化的C–N交叉偶联方法中的电流限制,使用了高通量实验来鉴定能够将基于哌啶的亲核试剂与五元(杂)芳族溴化物融合的催化剂。发现了标准亲电试剂的分解途径,并且使用基础筛选来鉴定抑制该不希望有的转化的条件。在此基础上,使用“实验设计”方法进行系统优化可提供温和的反应条件,然后将其应用于各种偶联伙伴。