Abstract
Comprehensive SummaryPhoto‐induced electron transfer (PET) of silyl enol ethers has been employed to synthesize several fused ring systems. However, the method has limited applicability due to its narrow substrate scope, low product yields, unsatisfactory stereo‐ and regioselectivity. Herein, we report a PET‐triggered cascade reaction of silyl enolates that leads to the formation of angularly fused tricyclic scaffolds. The reaction exhibits broad substrate scope and excellent stereoselectivity. The regio‐ and stereoselectivity of this cascade reaction is elucidated via DFT calculation and conformational analysis.
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