tetrakis(triphenylphosphine) palladium(0); tetraethylammonium chloride in N,N-dimethyl-formamide T=50°C; P=760 Torr; 6 h;

1: propargyl phenyl sulfone With Mo(CO)3(CN-t-Bu)3; tri-n-butyl-tin hydride; hydroquinone in tetrahydrofuran 0.283333 h; microwave irradiation; 2: benzoyl chloride With triphenylphosphine; bis(η3-allyl-μ-chloropalladium(II)) in tetrahydrofuran T=50°C; 18 h;

1.1: aq. H2O2; AcOH / diethyl ether / 5 h / Heating 2.1: Bu3SnH; Mo(CO)3(CN-t-Bu)3; hydroquinone / tetrahydrofuran / 0.28 h / microwave irradiation 2.2: PPh3 / [Pd(allyl)Cl]2 / tetrahydrofuran / 18 h / 50 °C View Scheme

1.1: K2CO3 / methanol / 0.5 h / 0 °C 2.1: aq. H2O2; AcOH / diethyl ether / 5 h / Heating 3.1: Bu3SnH; Mo(CO)3(CN-t-Bu)3; hydroquinone / tetrahydrofuran / 0.28 h / microwave irradiation 3.2: PPh3 / [Pd(allyl)Cl]2 / tetrahydrofuran / 18 h / 50 °C View Scheme