Jiguo Ma, Bing-Wen Li, Zhi-Xiang Yu. "One-Step-Three-Ring Propellanation Reaction of Yne-Vinylcyclobutanones Catalyzed by Nickel: Reaction Development, Mechanism, and Formal Synthesis of Modhephene." Journal of the American Chemical Society, 2026. doi:10.1021/jacs.5c21425