lithiodiacetamide in tetrahydrofuran; Petroleum ether treatment of diacetamide in THF at 0°C with BuLi was followed byaddn. of the boronate in petroleum ether, mixt. was stirred for 2 h at 20-25°C; 30:70 mixt. of unchanged iodo deriv. and phenyl etheneboronate (NMR) was obtained; concd., worked up with water and ether, ether phase was evapd., residueanalysed by (1)H NMR spectroscopy;

methyl iodide in N,N-dimethyl-formamide byproducts: pinacol 2-phenylethene-1-boronate; under Ar or N2, mixt. kept in te dark at 20-25°C for 66 h; addn. of ether and pentane, mixt. washed with water, distd. elem. anal.;