Iron-catalyzed direct alkenylation of sp3(C–H) bonds via decarboxylation of cinnamic acids under ligand-free conditions

Abstract

An example of highly efficient low-cost ferrocene-catalyzed decarboxylative C(sp2)–C(sp3) coupling reactions via C–H functionalization has been developed successfully. It is noteworthy that nanoparticles of Fe3O4 could be used as a reusable catalyst for 7 times in the absence of ligand.