oxygen; p-benozquinone; copper(I) bromide dimethylsulfide complex; copper(l) chloride; palladium dichloride in water; N,N-dimethyl-formamide P=750.06 Torr; 24 h; Ambient temperature; Product distribution;

in tetrahydrofuran T=-78°C; 1.) n-butyllithium, hexane, 15 min, 2.) 1 hr.;

1.) THF-ether, -70 deg C, 30 min; 2.) -70 deg C, 135 min; Yield given. Multistep reaction;

1.) THF-ether, -70 deg C, 30 min; 2.) -70 deg C, 135 min; Yield given. Multistep reaction;

oxygen; p-benozquinone; copper(I) bromide dimethylsulfide complex; copper(l) chloride; palladium dichloride in water; N,N-dimethyl-formamide P=750.06 Torr; 24 h; Ambient temperature; Product distribution;