Chem. Commun., 2025, Accepted Manuscript DOI: 10.1039/D5CC05303J, Communication Xue-Ling Luo, Yu Lv, Di-Jing Luo, Lu-Lu Qin, Shu-Hui Li, Zhi-Peng Ye, Zhen-Zhen Xie, Peng-Ju Xia Herein, an unprecedented photoinduced [3+2] cycloaddition of isobutylene, generated in situ from the Boc group via HFIPpromoted, and carbonyl cyclopropane is reported, enabling access a diverse range of poly-substituted cyclopentane...