Synfacts, Table of Contents Synfacts 2021; 17(11): 1245DOI: 10.1055/s-0041-1737069 Metals in Synthesis Copper-Mediated Homologation of Alkynes to Allenes: The Crabbé Reaction Authors Contributor(s): Mark Lautens Joachim Loup Recommend Article Abstract Key words Key wordsCrabbé reaction - homologation - allenes - copper catalysis Full Text