Multi-step reaction with 13 steps
1.1: aq. HBr; Br2 / dioxane / 2.5 h / 3 - 5 °C
1.2: 47 percent / aq. NaOH / 2.5 h / 3 - 5 °C
2.1: 91 percent / PhLi / various solvent(s) / 1.5 h / -15 °C
3.1: NaH / dimethylformamide / 20 °C
3.2: 84 percent / dimethylformamide / 2 h / 20 °C
4.1: BH3*THF / 1,2-dimethoxy-ethane / 5.5 h / 20 °C
4.2: 74 percent / aq. sodium percarbonate / 1,2-dimethoxy-ethane / 17 h / 50 - 55 °C
5.1: 100 percent / H2 / Pd/C / methanol / 23 h / 20 °C
6.1: 85 percent / aq. NaHCO3 / dioxane / 1 h / 20 °C
7.1: 100 percent / K2CO3 / dimethylformamide / 21 h / 120 °C
8.1: 95 percent / NaH / dimethylformamide / 1.5 h / 20 °C
9.1: 100 percent / HCl / methanol / 1 h / 20 °C
10.1: 87 percent / aq. NaHCO3 / dioxane / 1 h / 20 °C
11.1: 72 percent / pyridine / 0.25 h / 20 °C
12.1: 98 percent / aq. NaOH / dimethylsulfoxide / 1 h / 20 °C
13.1: 96 percent / NaOMe / dimethylformamide / 9 h / 20 °C
With
pyridine; hydrogenchloride; sodium hydroxide; borane-THF; hydrogen bromide; hydrogen; bromine; sodium methylate; sodium hydride; sodium hydrogencarbonate; potassium carbonate; phenyllithium;
palladium on activated charcoal;
In
1,4-dioxane; methanol; 1,2-dimethoxyethane; dimethyl sulfoxide; N,N-dimethyl-formamide;
DOI:10.1016/S0014-827X(01)01004-7