Multi-step reaction with 9 steps
1: sulfuric acid / 0 °C / Reflux
2: potassium carbonate; tetra-(n-butyl)ammonium iodide / N,N-dimethyl-formamide / 3 h / 20 °C / Inert atmosphere
3: lithium aluminium tetrahydride / tetrahydrofuran / 3 h / 0 - 20 °C / Inert atmosphere
4: triphenylphosphine; tetrachloromethane / tetrahydrofuran / 2 h / Reflux; Inert atmosphere
5: potassium carbonate; bis-triphenylphosphine-palladium(II) chloride / tetrahydrofuran / 20 °C / Inert atmosphere
6: palladium 10% on activated carbon; hydrogen / methanol
7: pyridine / dichloromethane / 3.17 h / 0 - 20 °C
8: palladium diacetate; dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; potassium phosphate / toluene; water / 15 h / 125 °C
9: lithium hydroxide monohydrate / water; tetrahydrofuran / 15 h / 20 °C
With
dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; pyridine; tetrachloromethane; bis-triphenylphosphine-palladium(II) chloride; potassium phosphate; lithium aluminium tetrahydride; lithium hydroxide monohydrate; sulfuric acid; palladium 10% on activated carbon; hydrogen; palladium diacetate; tetra-(n-butyl)ammonium iodide; potassium carbonate; triphenylphosphine;
In
tetrahydrofuran; methanol; dichloromethane; water; N,N-dimethyl-formamide; toluene;