copper(l) iodide; sodium hydride 1) dimethylacetamide, 2.,5-3 h, r.t., 2) 6 h, reflux; Yield given. Multistep reaction. Yields of byproduct given;

methyl orange; sodium cyanoborohydride in tetrahydrofuran; water 1 h;

1: 95 percent / 0,1percent methylorange, NaBH3CN / tetrahydrofuran; H2O / 1 h 2: 97 percent / triphenylphosphane, dibromohexachloroethane / 1,2-dichloro-ethane / 2.5 h / -20 - -18 °C View Scheme