1: 100 percent / potassium hydroxide powder / tetra-n-butylammonium bromide / tetrahydrofuran / 1 h / Ambient temperature 2: 67 percent / butan-1-ol / 0.5 h / Heating View Scheme

1: 99 percent / p-methoxyphenylthiophosphine sulfide dimer / toluene / 1 h / 100 °C 2: 100 percent / potassium hydroxide powder / tetra-n-butylammonium bromide / tetrahydrofuran / 1 h / Ambient temperature 3: 67 percent / butan-1-ol / 0.5 h / Heating View Scheme

potassium hydroxide in water 0.5 h; Ambient temperature;

in butan-1-ol 0.5 h; Heating;

in butan-1-ol 0.5 h; Heating;

1: 70 percent / hydrazine hydrate / 0.33 h / Heating 2: 50 percent / 1N KOH / H2O / 0.5 h / Ambient temperature View Scheme