Thermodynamic Control of Isomerizations of Bicyclic Radicals: Interplay of Ring Strain and Radical Stabilization
作者:Michael E. Jung、Courtney A. Roberts、Felix Perez、Hung V. Pham、Lufeng Zou、K. N. Houk
DOI:10.1021/acs.orglett.5b03112
日期:2016.1.4
The rearrangements of 4-substituted bicydo[2.2.2]oct-5-en-2-yl radicals, generated from the corresponding Die Is Alder adducts with phenylseleno acrylates by radical-induced reductive deselenocarbonylations, give the 2-substituted bicydo[3.2.1]oct-6-en-2-yl radicals with some substituents, e.g., alkoxy and phenyl, but not for silyloxymethyl or benzyl substituents. Theoretical calculations with DFT give the thermodynamics of these reactions and the origins of these processes.