Multi-step reaction with 9 steps
1.1: borane-THF / tetrahydrofuran / 3 h / 0 - 20 °C / Inert atmosphere
2.1: acetic acid; iron; hydrogenchloride / ethanol / 3 h / 100 °C
3.1: 1H-imidazole; dmap / N,N-dimethyl-formamide / 20 °C / Inert atmosphere
4.1: pyridine / dichloromethane / 20 °C / Inert atmosphere
5.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
6.1: manganese(IV) oxide / tetrahydrofuran / 3 h / 20 °C / Inert atmosphere
7.1: potassium tert-butylate / tetrahydrofuran / 0.17 h / 20 °C / Inert atmosphere
7.2: 0.25 h / Inert atmosphere
8.1: hydrogenchloride / tetrahydrofuran / 20 °C / Inert atmosphere
9.1: indium(III) bromide; indium / tetrahydrofuran / 0.25 h / 20 °C / Inert atmosphere
9.2: 80 °C / Inert atmosphere
With
pyridine; 1H-imidazole; hydrogenchloride; dmap; manganese(IV) oxide; indium; borane-THF; indium(III) bromide; potassium tert-butylate; tetrabutyl ammonium fluoride; iron; acetic acid;
In
tetrahydrofuran; ethanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/ja3121394