in chloroform T=20°C; 10 h;

in chloroform byproducts: dimethyl(2-trimethoxysilylethyl)sulfonium iodide, (2-methylthioethyl)trimethoxysilane; addn. of MeI to soln. of (2-triethylstannylthioethyl)trimethoxysilane inCHCl3 (molar ratio of reagents 1:1); standing for 10 h at room temp.; evapn. in vac., sepn. of crystals; fractional distn. of filtrate in vac.;

in chloroform T=20°C; 10 h;