作者:Soham Maity、Marco A. Lopez、Desiree M. Bates、Shishi Lin、Shane W. Krska、Shannon S. Stahl
DOI:10.1021/jacs.3c05822
日期:2023.9.13
leverage polar, rather than radical, reaction pathways to enable the selective heterobenzylic C–H chlorination of 2- and 4-alkyl-substituted pyridines and other heterocycles. Catalytic activation of the substrate with trifluoromethanesulfonyl chloride promotes the formation of enamine tautomers that react readily with electrophilic chlorination reagents. The resulting heterobenzyl chlorides can be used