Hydroxyphosphinylation Reaction of 3-Cyclopropylideneprop-2-en-1-ones via C–P σ-Bond Cleavage
摘要:
An unexpected hydroxyphosphinylation of 3-cyclopropylideneprop-2-en-1-ones with phosphines has been observed. This method provides a unique regio- and stereoselective synthesis of highly functionalized 1-dialkylphinyl-3-oxo-(1Z)-alkenyl cyclo-propanols with important potentials. The reaction displays an unusual mechanistic feature-a highly selective cleavage of C-P sigma bonds in phosphines.