- ligand promoted copper-catalyzed [ 3 + 2 ] cycloaddition of propargylic esters with b-enamino esters : synthesis of highly functionalized pyrroles †

School of Light Industry and Chemical En Dalian 116034, China. E-mail: houcj@dlpu Dalian Institute of Chemical Physics, Chin China. E-mail: xiangping@dicp.ac.cn Faculty of Engineering and Built Environm NSW 2308, Australia † Electronic supplementary information characterization data and copies of N Crystallographic Information Framewor 1407815. For ESI and crystallographic dat DOI: 10.1039/c5ra19304d Cite this: RSC Adv., 2015, 5, 85879