1H-imidazole; iodine; dichlorotriphenylphosphorane in toluene 1.5 h;

1: 95 percent / H2 / 10percent Pd/C / acetic acid / 48 h / 2585.7 Torr 2: 73 percent / NaOH / dioxane / 18 h 3: 78 percent / imidazol, I2, triphenylphosphine chloride / toluene / 1.5 h View Scheme

1: 73 percent / NaOH / dioxane / 18 h 2: 78 percent / imidazol, I2, triphenylphosphine chloride / toluene / 1.5 h View Scheme

1: dichloromethane 2: iodine; triphenylphosphine; 1H-imidazole View Scheme