Described herein is the development of a visible-light-induced photoredox 1,6-enyne reductive cyclization via selective reduction of a triple bond instead of an activated double bond. The selective 1,6-enyne radical cyclization/carbon═carbon double bond cleavage provided a straightforward route to structurally valuable α,β-unsaturated γ-lactams. TEMPO-trap experiments, control experiments, and DFT
本文描述的是通过选择性还原三键而不是活化双键来开发可见光诱导的光氧化还原1,6-烯炔还原环化。选择性1,6-烯炔自由基环化/碳=碳双键断裂为获得结构上有价值的α , β-不饱和γ-内酰胺提供了直接途径。
TEMPO 陷阱实验、控制实验和 DFT 计算提供了支持可能的催化循环的证据。