Abstract

An enolate synthon of alkoxyacetone was regioselectively generated using alkoxyallene oxide and titanium tetraiodide/titanium tetraisopropoxide, and the subsequent conjugate addition reaction with enones gave 4-alkoxy-1,5-diketones in good yields.

Keywords: alkoxyacetone, alkoxyallene oxide, titanium tetraiodide, conjugate addition