Manganese-catalyzed and promoted reactions of H-phosphinate esters

Article abstract of DOI:10.1002/adsc.201301157

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.