The heterocycles and their derivatives are important organic compounds which are widely existed in various natural products and synthetic compounds. Alkenylated heterocycles have great value in the synthesis of natural products, medicine molecules, photoelectric materials and high active polymers. Herein, an efficient method was developed for C—H functionalization of heterocycles to synthesize alkenylated heterocycles with Cu I nanoparticles as catalyst, K3PO4 as base,1,10-phenanthroline as ligand, diglyme ...