1: 1,2-dibromo-4-iodobenzene With isopropylmagnesium chloride in tetrahydrofuran T=-78°C; 3 h; Inert atmosphere; 2: 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane in tetrahydrofuran T=-78 - 25°C; Inert atmosphere;