作者:Chi “Chip” Le、Kamala Kunchithapatham、William H. Henderson、Christopher T. Check、James P. Stambuli
DOI:10.1002/chem.201301787
日期:2013.8.19
to a THT! Screening a diverse library of thioether ligands led to the discovery of tetrahydrothiophene (THT) as a highly reactive and selective ligand for Pd‐catalyzed allylic CH oxidation reactions (see scheme). This novel ligand system provides some of the highest reported yields for the formation of (E)‐linear allylic acetates through allylic CH activation chemistry (BQ = 1,4‐benzoquinone).
完美的THT!筛选多样化的硫醚配体库导致发现四氢噻吩(THT)作为Pd催化的烯丙基CH氧化反应的高反应性和选择性配体(参见方案)。这种新颖的配体体系为通过烯丙基CH活化化学(BQ = 1,4-苯醌)形成(E)-线性烯丙基乙酸酯提供了某些报道的最高收率。