evapg. of filtrate of SnI4 suspension;

methyl iodide in water 500 mg Sn reacts with 0.05 ml CH3I in 2 ml H2O in a gas-tight vial during one week at room tempetature; no reaction was observed;

in chloroform (N2); CH3SnCl3 is reactec with a slight excess of NaI in dry CHCl3 for 4 h (gives a yellowish soln.); filtration, evapn. (under a stream of N2), sublimation (75°C, evacuated sealed tube);

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in benzene-d6 byproducts: germanium-contg. polymer; (Ar); stirring (20°C, 2 d); NMR-monitoring;