Photochemical Homologated Aminophosphorylation of Carbon-Carbon π-, and σ-Bonds Through Radical Translocation

Abstract

Difunctionalization of olefins serves as the workhorse for rapid creation of molecular complexity from simple feedstocks. However, these reactions are mostly restricted to the 1,2-variant, with higher homologations being attempted to a much lesser extent. Radical translocation strategies serve as an escape from the traditional 1,2-strategies, providing a means for achieving distant functionalizations that are otherwise difficult to access. Herein, we disclose visible light-mediated strategies for the accessing of 1,3-, 1,4-, 1,5-, and 1,6-aminophosphonates via combination of various radical shifting methods. In addition, the aminophosphorylation of σ-bonds was also achieved, leading to 1,3-aminophosphorylated cyclobutanes.