作者:Mahmoud Sayah、Michael G. Organ
DOI:10.1002/chem.201303756
日期:2013.11.25
PEPPSI max: KOiPr has been identified as the key ingredient for Pd‐catalyzed sulfination (see scheme). Potassium is essential to keep the thiol concentration low, and isopropoxide is necessary for precatalyst activation and to break up Pd‐sufide‐based resting states. Together with the reactive Pd‐PEPPSI‐IPentCl o‐picoline catalyst, this system couples profoundly deactivated partners at RT that other
PEPPSI max:KO i Pr被确定为Pd催化硫化的关键成分(参见方案)。钾对于保持较低的硫醇浓度至关重要,而异丙醇对于激活前催化剂和破坏基于硫化钯的静止状态则必不可少。一起与反应性的Pd-PEPPSI-IPent氯 ø甲基吡啶催化剂,该系统耦合深刻在RT失活的合作伙伴,其它催化剂可以在回流的甲苯中未完成。