A “Pool and Split” Approach to the Optimization of Challenging Pd-Catalyzed C–N Cross-Coupling Reactions
作者:James M. Fordham、Philipp Kollmus、Monika Cavegn、Regina Schneider、Marco Santagostino
DOI:10.1021/acs.joc.2c00104
日期:2022.3.18
A screening method for the rapid identification of catalytic conditions for Pd-catalyzed C–N cross-coupling reactions is reported. The strategy evaluates mixtures of precatalysts, ligands, and bases to identify productive conditions that are subsequently optimized through two deconvolution steps, which uncover the active catalyst and identify the optimal solvent and base for the catalyticsystem. The
报道了一种用于快速识别 Pd 催化的 C-N 交叉偶联反应催化条件的筛选方法。该策略评估预催化剂、配体和碱的混合物,以确定随后通过两个解卷积步骤优化的生产条件,这些步骤揭示了活性催化剂并确定了催化系统的最佳溶剂和碱。这种方法的有效性通过应用到先前报道的反应中得到证明,从而检索了文献条件和其他解决方案。平行研究了 Ni 催化的 C-N 交叉偶联的相同方法,但由于评估的试剂组合的活性有限,发现不太成功。最后,