1: 34 percent / KOH / xylene; ethanol; H2O / 5 h / 150 °C 2: 1.) K2CO3, Bu4N(1+)*HSO4(1-), 2.) aq. HCl / 1.) CH3CN, reflux, 2.) reflux View Scheme

hydrogenchloride; tetra(n-butyl)ammonium hydrogensulfate; potassium carbonate 1.) CH3CN, reflux, 2.) reflux; Yield given. Multistep reaction;

sodium hydride in N,N-dimethyl-formamide 5 h; Heating;