1: 2-bromo-1,3,5-triisopropylbenzene With 1,2-dibrom-methane; magnesium in tetrahydrofuran 3.5 h; Heating; 2: 2,4,6-tribromo-1-iodobenzene in tetrahydrofuran 5 h; Heating; Further stages.;

1: 2-bromo-1,3,5-triisopropylbenzene With magnesium Inert atmosphereReflux; 2: 2,4,6-tribromo-1-iodobenzene in tetrahydrofuran 4 h; Inert atmosphereReflux;