PPh3 gold(I) chloro complex; water; silver trifluoromethanesulfonate; toluene-4-sulfonic acid in 1,2-dichloro-ethane T=120°C; Michael Addition; Microwave irradiation; regioselective reaction;

triethylamine in ethanol Heating;

potassium carbonate in tetrahydrofuran Ambient temperatureovernight;

T=150°C; 3 h;