Bf3 etherate mediated 1,4-addition of 1-alkenyldialkoxyboranes to α,β-unsaturated ketones. A stereoselective synthesis of γ, δ-unsaturated ketones

Article abstract of DOI:10.1016/S0040-4039(00)94383-1

1-Alkenyldialkoxyboranes react with α,β-unsaturated ketones in the presence of BF₃ etherate through a facile 1,4-addition manner to give γ,δ-unsaturated ketones stereoselectively. As an application of this reaction, δ,δ - or γ,δ -disubstituted