1: 2-allyl-4-bromoanisole With n-butyllithium in tetrahydrofuran; hexane 0.25 h; 2: N,N-dimethyl-formamide in tetrahydrofuran; hexane

1: 2-allyl-4-bromoanisole With magnesium; ethylene dibromide in diethyl ether 1 h; Reflux; 2: 1-allyl-4-oxocyclohexa-2,5-dienylethanoate in diethyl ether T=0°C; 0.5 h;

1.1: n-butyllithium; tri-isopropoxy-borane / tetrahydrofuran; hexane / 2 h / -78 - 20 °C 1.2: 0.5 h / 20 °C 2.1: palladium diacetate; potassium carbonate; dicyclohexyl(2',6'-diisopropoxy-[1,1'-biphenyl]-2-yl)phosphine / ethylene glycol dimethyl ether; water / 0.17 h / 130 °C / Microwave irradiation View Scheme