Photoredox‐Catalyzed Cyclobutane Synthesis by a Deboronative Radical Addition–Polar Cyclization Cascade
作者:Chao Shu、Adam Noble、Varinder K. Aggarwal
DOI:10.1002/anie.201813917
日期:2019.3.18
single‐electron transfer induced deboronative radicaladdition to an electron‐deficient alkene followed by single‐electron reduction and polar 4‐exo‐tet cyclization with a pendant alkyl halide. Key to the success of the methodology was the use of easily oxidizable arylboronate complexes. Structurally diverse cyclobutanes are shown to be conveniently prepared from readily available alkylboronic esters and