Electrochemical synthesis of 7-membered carbocycles through cascade 5-exo-trig/7-endo-trig radical cyclization
Literature Information
Hao Long, Jinshuai Song, Hai-Chao Xu
7-endo-trig cyclizations, especially for unhindered terminal alkenes, remain underdeveloped. We report herein an electrochemical synthesis of functionalized 7-membered carbocycles through a 5-exo-trig/7-endo-trig radical cyclization cascade. The first cyclization step of the cascade process forms a 5-membered ring with trans-disposition of the radical center and the remaining alkene. This trans configuration forces the 6-heptenyl radical to undergo regioselective 7-endo cyclization.
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Organic Chemistry Frontiers

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