In 2014, we disclosed a high yielding domino reaction which formed one C–H, one C–C, and one C–O bonds in the process via copper-catalyzed reductive aldol addition/lactonization from α,β-unsaturated dicarboxylate esters, ketones, and a silane. The obtained functionalized lactones are of high biological interest. The reaction involved the formation of copper enolate, then yielding alkoxylate intermediates after reacting with carbonyls, and finally forming exo-ester-linked lactones following the further intramolecular reaction with an existing ester group. In addition, we have also reported three-step domino reactions initialized by copper-catalyzed conjugate reduction using imines, or ketoesters as enolate acceptors