Congratulations to Long Li, Xinqi Zhu, Yingqi Zhang, Haozhen Bu, their work, 'Metal-Free Alkene Carbooxygenation Following Tandem Intramolecular Alkoxylation/Claisen Rearrangement: Stereocontrolled Access to Bridged [4.2.1] Lactones', is accepted by Chem. Sci.