作者:Linhua Wang、Xuesong Zheng、Qinze Zheng、Zhenlong Li、Jian Wu、Ge Gao
DOI:10.1021/acs.orglett.2c01404
日期:2022.6.3
A Cu-catalyzed regioselective C5–H arylation of imidazo[1,5-a]pyridines with aryl iodides was achieved with the assistance of an ethylthio group at the C3 position. This directing group could be easily removed to furnish a range of 5-(hetero)arylimidazo[1,5-a]pyridine derivatives. The reaction tolerates a variety of functionalities and is compatible with sterically hindered substrates.
在 C3 位的乙硫基团的帮助下,实现了Cu 催化的咪唑并[1,5- a ]吡啶与芳基碘化物的区域选择性 C5-H 芳基化。该导向基团可以很容易地去除以提供一系列 5-(杂)芳基咪唑并[1,5- a ]吡啶衍生物。该反应具有多种功能,并且与空间位阻底物相容。