CS2; CH3I in tetrahydrofuran byproducts: LiI; to a solution of Ph3SnLi was added a twofold amount of CS2; cooled; excess MeI was added; 20°C; chromatographed (silicagel, THF); solvent was removed; recrystallized twice from petroleum ether;

methylhalogenide chromy.;

in tetrahydrofuran byproducts: LiI; to (C6H5)3SnLi in THF dropped under stirring CS2 in slight excess, colour change to red brown with warming, after cooling addn. of CH3I in excess; column chromy. (silica gel/THF), solvent removed from the violet fraction, elem. anal.;