Multi-step reaction with 7 steps
1.1: potassium carbonate / N,N-dimethyl-formamide / 42 h / 18 °C
2.1: N,N,N,N,-tetramethylethylenediamine; tert.-butyl lithium / diethyl ether; pentane / 0.17 h / -78 °C
2.2: 0.5 h / -78 °C
2.3: -78 - 18 °C
3.1: hydrogenchloride; water / tetrahydrofuran / 24 h / 18 °C
4.1: sodium hydride / tetrahydrofuran / 0.08 h / 18 °C
4.2: 2.5 h
5.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 6 h / 18 °C
6.1: lithium aluminium tetrahydride / diethyl ether / 3.5 h / 0 - 18 °C
6.2: 3 h / 0 °C
7.1: 1H-imidazole / N,N-dimethyl-formamide / 20 h / 18 °C
With
1H-imidazole; hydrogenchloride; lithium aluminium tetrahydride; N,N,N,N,-tetramethylethylenediamine; water; tert.-butyl lithium; sodium hydride; potassium carbonate; N-ethyl-N,N-diisopropylamine;
In
tetrahydrofuran; diethyl ether; dichloromethane; N,N-dimethyl-formamide; pentane;