Multi-step reaction with 9 steps
1.1: N,N-dimethyl-formamide; oxalyl dichloride / dichloromethane / 2 h / 20 °C / Inert atmosphere
1.2: 0.25 h / 0 °C
2.1: triethylamine; trifluoroacetic anhydride / dichloromethane / 1.75 h / 0 °C
3.1: hydrazine hydrate / butan-1-ol / 4.5 h / Reflux
4.1: tert.-butylnitrite; Bromoform / 2 h / 61 - 90 °C
5.1: potassium carbonate / N,N-dimethyl-formamide / 0 - 20 °C
6.1: potassium acetate / N,N-dimethyl-formamide / 0.67 h / Inert atmosphere
6.2: 1.5 h / 100 °C
7.1: potassium phosphate / 2-methyltetrahydrofuran; water / 0.75 h / Inert atmosphere
7.2: 95 °C / Inert atmosphere
8.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0.5 h / 0 °C
9.1: sodium carbonate / acetonitrile; 2-methyltetrahydrofuran / 1 h / 125 °C / Microwave irradiation
With
potassium phosphate; tert.-butylnitrite; oxalyl dichloride; Bromoform; potassium acetate; sodium carbonate; potassium carbonate; hydrazine hydrate; triethylamine; N,N-dimethyl-formamide; 3-chloro-benzenecarboperoxoic acid; trifluoroacetic anhydride;
In
2-methyltetrahydrofuran; dichloromethane; water; N,N-dimethyl-formamide; acetonitrile; butan-1-ol;