Hydroxyphosphinylation Reaction of 3‑Cyclopropylideneprop-2-en-1-ones via C–P σ‑Bond Cleavage

Abstract

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-(1<i>Z</i>)-alkenyl cyclopropanols with important potentials. The reaction displays an unusual mechanistic featurea highly selective cleavage of C–P σ bonds in phosphines

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