Nature CommunicationsRing expansion of bicyclo[1.1.0]butyl ketones to bicyclo[2.1.1]hexenes using ketone as both activating and reacting groupsJunjie GeLihang CaoKun LinChenhao RuanXinyi YeXiaoze BaoZhikun YangHong WangHua Chen2025-10-16Full textDOI https://doi.org/10.1038/s41467-025-64226-z