Formal kinetic proof of reversible unimolecular transformation to a biradical as an obligatory first step in the mechanism of cycloaddition of 5-isopropylidenebicyclo[2.1.0]pentane to olefins
A ranking of diylophilic reactivities of olefins toward the singlet and triplet forms of the trimethylenemethane biradical, 2-isopropylidenecyclopenta-1,3-diyl
作者:Charles D. Duncan、Leonard R. Corwin、James H. Davis、Jerome A. Berson
DOI:10.1021/ja00527a037
日期:1980.3
Identification of a biradical as the reactive form of the 2-isopropylidenecyclopentane-1,3-diyl singlet species
作者:Mark R. Mazur、Jerome A. Berson
DOI:10.1021/ja00393a039
日期:1981.2
Direct measurements of the absolute rates of dimerization and capture of the 2-isopropylidenecyclopenta-1,3-diyl species by electron paramagnetic resonance spectroscopy