magnesium in tetrahydrofuran under Ar, soln. of Br-compd. added slowly to Mg in THF with refluxing, refluxed, cooled to room temp., soln. of Me3SnCl added, stirred for several h; ether and saturated NH4Cl-soln. added, organic layer dried over MgSO4, fractionated, elem. anal.;

methyl-magnesium iodide; copper (I) cyanide in tetrahydrofuran; diethyl ether byproducts: α-methylstyrene; to soln. of MeLi in Et2O added suspn. of anhyd. SnCl2 in THF at 0 °C, after stirring for 20 min added soln. of MeMgI in Et2O at 0 °C, stirred for 15 min CuCN and soln. of alkene in THF added successively, stirred for 5 h at room temp.; poured into aq. satd. soln. of NH4Cl, extd. (Et2O), org. layer washed with brine, dried over Na2SO4, concd., cromd. (SiO2);

in tetrahydrofuran 50°C, 2 h;;

hydrogenchloride in methanol; water Kinetics; protodestannylation in MeOH/H2O at 25°C; monitored spectrophotometrically;

triphenyl-arsane; bis(dibenzylideneacetone)-palladium(0) in toluene T=110°C;

bis(dibenzylideneacetone)-palladium(0) in diethyl ether; acetonitrile 1 h; Ambient temperature; Yield given. Yields of byproduct given;

triphenyl-arsane; bis(dibenzylideneacetone)-palladium(0) in toluene T=110°C;

triphenyl-arsane; bis(dibenzylideneacetone)-palladium(0) in toluene T=110°C;

triphenyl-arsane; bis(dibenzylideneacetone)-palladium(0) in toluene T=110°C;