Tandem Catalysis: Rh(III)-Catalyzed C–H Allylation/Pd(II)-Catalyzed N‑Allylation Toward the Synthesis of Vinyl-Substituted N‑Heterocycles

Tandem catalysis by Rh­(III)/Pd­(II) was realized, enabling rapid access to two important N-heterocycles that bear a synthetically valuable vinyl substituent. The reaction occurred under mild reaction conditions and was easy to handle. Good substrate scope and high regio- and stereoselectivities were observed. The vinyl group was demonstrated to be a reliable handle for functional group interconversions. The alkene effect was found to be the key factor for the success of this process.