Palladium-Catalyzed Borylation of Sterically Demanding Aryl Halides with a Silica-Supported Compact Phosphane Ligand
作者:Soichiro Kawamorita、Hirohisa Ohmiya、Tomohiro Iwai、Masaya Sawamura
DOI:10.1002/anie.201103224
日期:2011.8.29
active: A silica‐supported “compact” phosphane, Silica‐SMAP, can be used in the Pd‐catalyzed borylation of aryl chlorides or bromides with bis(pinacolato)diboron (see scheme). The Silica‐SMAP/Pd system significantly expands the substrate scope of the borylation toward sterically and electronically challenging aryl halides.
固定但不活跃:二氧化硅负载的“紧凑”膦Silica-SMAP可用于Pd催化的芳基氯化物或溴化物与双(频哪醇)二硼化的硼化反应(参见方案)。Silica-SMAP / Pd系统极大地扩展了硼化的底物范围,使其具有对空间和电子挑战性的芳基卤化物。