A palladium catalyzed atom-efficient cross-coupling reactivity of triarylbismuths with α,β-unsaturated acyl chlorides
An atom-efficient cross-coupling reactivity of triarylbismuths (1 equiv) was demonstrated by cross-coupling reaction with 3 equiv of α,β-unsaturated acyl chlorides under palladium catalysis in the synthesis of a series of functionalized α, β-unsaturated ketones in high isolated yields.
Rao, Maddali L.N.,Venkatesh, Varadhachari,Jadhav, Deepak N.
A new solvent-free synthesis of α,β-unsaturated ketones from acetals with aryl ketones under microwave irradiation
A new, rapid and efficient method for the synthesis of α,βunsaturated ketones under microwave irradiation conditions is described. The process involves the reaction of acetals with aryl ketones in the absence of solvent using Lewis acids as catalysts under microwave irradiation to afford the α,βunsaturated ketones in good to excellent isolated yields. The reaction mechanism is briefly discussed.