Polar-Radical Cyclization Cascades with Magnesiated Nitriles
作者:Stephen Bolgunas、Ehecatl Paleo、Embarek Alwedi、Yunjing Wei、Taylor M. Keller、Fraser F. Fleming
DOI:10.1021/acs.orglett.3c01094
日期:2023.5.19
via a polar-radical addition–cyclization cascade. One-electron oxidation of magnesiated nitriles generates nitrile-stabilized radicals that cyclize onto a pendant olefin and then rebound onto the nitrile through a reduction–cyclization sequence; subsequent hydrolysis affords a diverse array of bicyclo[3.2.0]heptan-6-ones. Combining the polar-radical cascade with a 1,2:1,4-carbonyl-conjugate addition