potassium tert-butylate in dimethyl sulfoxide; toluene T=55°C; 0.0833333 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

1: 86 percent / dichloroacetic acid, sodium acetate, hydroxylamine hydrochloride / CH2Cl2 / 0.5 h / Ambient temperature 2: potassium tert-butoxide / dimethylsulfoxide; toluene / 0.08 h / 55 °C View Scheme

1: 83 percent / tetrahydrofuran; diethyl ether / 2 h / 15 - 20 °C 2: 86 percent / dichloroacetic acid, sodium acetate, hydroxylamine hydrochloride / CH2Cl2 / 0.5 h / Ambient temperature 3: potassium tert-butoxide / dimethylsulfoxide; toluene / 0.08 h / 55 °C View Scheme