Palladium(0)-catalyzed cyclopropanation of benzyl bromides via C(sp3)–H bond activation†
Abstract
A novel and highly efficient Pd(0)-catalyzed domino reaction to prepare cyclopropane derivatives has been established. The process involves a Heck-type coupling reaction and a C(sp3)–H bond activation. Preliminary DFT calculations suggest that a four-membered palladacycle intermediate is involved.