sodium carbonate; acetic acid in toluene byproducts: Et3SiOZn(OCH2CH2)(n)(Et), ethane, hexaethyldisiloxane; argon atmosphere; ethylene oxide soln. addn. to Zn-compd. soln. (ampul), ampul sealing, heating (70°C, 21 h), ampulopening, solvent removal (vac.), residue treatment with acetic acid soln. (toluene); zinc acetate ppt. filtration off, liquid products removal (vac.), acid neutralization (sodium carbonate); (1)H-NMR and IR spectroscopy, GLC andelem. anal.;

sodium carbonate; acetic acid in toluene byproducts: Et3SiOZn(OCH(CH3)CH2)(n)(Et), ethane, hexaethyldisiloxane; argon atmosphere; ethylene oxide soln. addn. to Zn-compd. soln. (ampul), ampul sealing, heating (70°C, 21 h), ampulopening, solvent removal (vac.), residue treatment with acetic acid soln. (toluene); zinc acetate ppt. filtration off, liquid products removal (vac.), acid neutralization (sodium carbonate); (1)H-NMR and IR spectroscopy, GLC andelem. anal.;