potassium acetate; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II) dichloromethane adduct in 1,4-dioxane T=80°C; 17 h;

1: N'-(4,4-dimethylcyclohexylidene)-4-methylbenzene-1-sulfonohydrazide With n-butyllithium; N,N,N',N,-tetramethylethylenediamine in hexane T=-78 - 25°C; 3 h; Inert atmosphere; 2: 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane in hexane T=-78°C; 2 h; Inert atmosphere;

sodium periodate; ammonium acetate in water; acetone