potassium hydroxide; phosphorus pentachloride; phosphorus trichoride 1) reflux, 48 h; 2) ethanol, reflux, 40 h; Yield given. Multistep reaction;

tetrabutyl ammonium fluoride; palladium diacetate; triphenylphosphine 1.) THF, r.t., 30 min, 2.) toluene, reflux, 30 h; Yield given. Multistep reaction;