Multi-step reaction with 11 steps
1.1: 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione; sulfuric acid / 5 h / 20 °C
2.1: sodium carbonate / N,N-dimethyl-formamide / 8 h / 60 °C
3.1: ammonium chloride; iron / ethanol; water / 1 h / 90 °C
4.1: potassium acetate / chloroform / 12 h / 20 °C
4.2: 3 h / 65 °C
5.1: hydrogenchloride / water; methanol / 8 h / 60 °C
5.2: pH 8
6.1: caesium carbonate / acetonitrile / 90 °C
7.1: tetrakis(triphenylphosphine) palladium(0) / 1,4-dioxane / 0.17 h / Inert atmosphere
7.2: 2.17 h / 80 °C / Inert atmosphere
8.1: potassium carbonate / N,N-dimethyl-formamide / 4 h / 100 °C
9.1: sodium hydroxide; water / ethanol / 1 h / 60 °C
9.2: pH 6
10.1: dimethyl sulfoxide / 0.25 h / 20 °C
11.1: triphenylphosphine / dichloromethane / 0.17 h / 20 °C
11.2: 4 h / 20 °C
11.3: 30 h / 20 - 60 °C
With
hydrogenchloride; 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione; sulfuric acid; water; potassium acetate; iron; sodium carbonate; potassium carbonate; ammonium chloride; caesium carbonate; triphenylphosphine; sodium hydroxide;
tetrakis(triphenylphosphine) palladium(0);
In
1,4-dioxane; methanol; ethanol; dichloromethane; chloroform; water; dimethyl sulfoxide; N,N-dimethyl-formamide; acetonitrile;