Multi-step reaction with 11 steps
1: sulfuric acid; 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione / 12.5 h / 0 - 20 °C
2: acetic acid; iron / acetic acid / 0.5 h / 90 °C
3: 0.5 h / 0 - 20 °C
4: caesium carbonate; copper(I) oxide / N,N-dimethyl-formamide / 16 h / 120 °C
5: water; calcium chloride; iron / ethanol / 4 h / 100 °C
6: potassium fluoride / N,N-dimethyl-formamide / 4 h / 150 °C
7: water; calcium chloride; iron / ethanol / 4 h / 100 °C
8: 0.5 h / 100 °C
9: caesium carbonate; copper(I) oxide / N,N-dimethyl-formamide / 12 h / 110 °C
10: sodium hydroxide; water / ethanol / 3 h / 90 °C
11: triethylamine / dichloromethane / 1 h
With
copper(I) oxide; potassium fluoride; 1,3-dibromo-5,5-dimethylimidazolidine-2,4-dione; sulfuric acid; water; iron; caesium carbonate; acetic acid; triethylamine; calcium chloride; sodium hydroxide;
In
ethanol; dichloromethane; acetic acid; N,N-dimethyl-formamide;