A key difficulty to overcome in pyridinium salts functionalization is the regioselectivity at the two competing C2 and C4 sites. Here, the authors show bifunctional N-aminopyridinium salts reagents delivering both the aminyl radical and the pyridyl group to an olefin with C4-pyridyl regioselectivity.
- Yonghoon Moon
- Bohyun Park
- Sungwoo Hong