Hunan Provincial Natural Science Foundation of ChinaNatural Science Foundation of Hunan Province [2019JJ50008]; Scientific Research Fund of Hunan Provincial Education DepartmentHunan Provincial Education Department [20B081, 19B080]; Foundation of Hunan Province Universities Key Laboratory of Functional Organometallic Materials [GN18K04]; Foundation of Hengyang Normal University [cxcy1943, 18D08]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21625203]
机构署名：
本校为第一且通讯机构
院系归属：
化学与材料科学学院
摘要：
We report here a DTBP-mediated oxidative [4 + 2]/[3 + 2] annulation between 2-alkynylbenzaldehydes and terminal arylalkenes enabled by aldehyde C(sp2)–H functionalization for assembling a range of benzo[a]fluoren-5-ones with high step-economy, simple operation under metal-/solvent-free conditions and excellent functional group tolerance. This method is initiated from 2-alkynylbenzaldehyde reaction partners and provides a useful new strategy to construct complex benzo[a]fluoren-5-one scaffolds compared to e...
