thiourea in propan-1-ol 6.5 h; Heating;

1: 64 percent / Et3N / methanol / 3 h / Ambient temperature 2: 66 percent / 30percent H2O2, NH3, / methanol / 5.5 h / Ambient temperature 3: 56 percent / thiourea / propan-1-ol / 6.5 h / Heating View Scheme

1: 71 percent / Et3N / methanol / 1 h / Ambient temperature 2: 56 percent / thiourea / propan-1-ol / 6.5 h / Heating View Scheme

1: 66 percent / 30percent H2O2, NH3, / methanol / 5.5 h / Ambient temperature 2: 56 percent / thiourea / propan-1-ol / 6.5 h / Heating View Scheme

ammonium hydroxide; nickel 1.) H2O, dioxane, heating, 2.) H2O, dioxane, reflux, 135 min; Yield given. Multistep reaction;