Manganese‐Catalyzed and Promoted Reactions of <i>H</i>‐Phosphinate Esters

Abstract

Abstract H ‐Phosphinates react with alkenes and alkynes using catalytic manganese(II) acetate. Under stoichiometric conditions with manganese(III) acetate or with catalytic manganese(II) acetate+excess manganese(II) oxide various reactions like arylation or cyclization through radical oxidative arylation can take place. Whereas the chemistry of manganese is already well developed for the functionalization of H ‐phosphonates, the present methodology provides an unprecedented access to functionalized phosphinates in acceptable to good yields. magnified image