Phosphine catalyzed addition of long-chain dialkyl phosphites to electron-deficient alkenes

Conjugate addition of the long chain dialkyl phosphites to electron-deficient alkenes under PBu(3)catalysis afforded the corresponding phosphonates in good yields in a short reaction time. Long chain alkyl groups in the phosphites were well tolerated in this transformation. The products of this reaction are of particular interest as components of lubrication oil composition.