1: trifluoromethanesulfonic acid 3,5-dimethylphenyl ester With potassium acetate; 5,5,5',5'-tetramethyl-[2,2']bi[[1,3,2]dioxaborinanyl] in dimethyl sulfoxide Inert atmosphere; 2: 4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl-4',4',5',5'-tetramethyl-1,3,2-dioxaborolane in dimethyl sulfoxide T=80°C; 1 h; Inert atmosphere;

triethylamine; palladium diacetate; 1,3-bis-(diphenylphosphino)propane in N,N-dimethyl-formamide T=60°C;

1: With water; palladium diacetate; caesium carbonate; sodium thiosulfate; 2-(dicyclohexylphosphino)-2',4',6'-tri-i-propyl-1,1’-biphenyl in toluene; tert-butyl alcohol T=80°C; 24 h; Inert atmosphere; 2: With hydrogenchloride; zinc in water 1 h; Cooling with ice;

2,2'-bis(di-p-tolyl-phosphino)-1,1'-binaphthyl; copper(I) oxide; 1,10-phenanthroline; palladium (II) bromide in 1-methyl-pyrrolidin-2-one T=50 - 190°C; Microwave irradiationInert atmosphere;

potassium phosphate; bis(benzonitrile)palladium(II) dichloride in tetrahydrofuran T=60°C; Suzuki-Miyaura Coupling; 16 h; Inert atmosphereSealed tube;

tetrabutyl ammonium fluoride; Sn[N(SiMe3)2]2; bis-triphenylphosphine-palladium(II) chloride 1.) THF, r.t., 30 min, 2.) THF, DMF, 60 deg C, 20 h; Yield given. Multistep reaction;

tetrabutyl ammonium fluoride; Sn[N(SiMe3)2]2; bis-triphenylphosphine-palladium(II) chloride 1.) THF, r.t., 30 min, 2.) THF, DMF, 60 deg C, 20 h; Yield given. Multistep reaction;