chlorosulphuric acid

N-ethyl-N,N-diisopropylamine in tetrahydrofuran T=0 - 20°C;

1: triethylamine / tetrahydrofuran; dichloromethane / 0 °C 2: potassium acetate; 4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl-4',4',5',5'-tetramethyl-1,3,2-dioxaborolane; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II) dichloromethane adduct / 1,4-dioxane / 100 °C / |Schlenk technique; |Inert atmosphere View Scheme

pyridine in dichloromethane T=20°C; 2 h;

triethylamine in tetrahydrofuran; dichloromethane T=0°C;