Multi-step reaction with 7 steps
1: HBr / CH2Cl2 / 0.17 h / Ambient temperature
2: 60 percent / di-isopropyl-ethylamine / tetraethylammonium bromide / CH2Cl2; dimethylformamide / 96 h / Ambient temperature
3: 87 percent / tetrabutylammonium hydroxide / H2O; dioxane / 4 h / 20 °C
4: 96 percent / DABCO / (Ph3P)3RhCl / ethanol; H2O / 2.5 h / 85 °C
5: 83 percent / 2,2,2-triisopropylbenzenesulphonyl-3-nitro-1,2,4-triazole / pyridine / 2 h / Ambient temperature
6: 76 percent / HgCl2, HgO / acetone; H2O / 0.5 h / 20 °C
7: 100 percent / 2,4,6-triisopropylbenzenesulphonic acid, zinc / pyridine / 0.17 h / 40 °C
With
1,4-diaza-bicyclo[2.2.2]octane; 2,2,2-triisopropylbenzenesulphonyl-3-nitro-1,2,4-triazole; 2,4,6-tri(iso-propyl)benzenesulfonic acid; tetra(n-butyl)ammonium hydroxide; hydrogen bromide; N-ethyl-N,N-diisopropylamine; mercury dichloride; mercury(II) oxide; zinc;
Wilkinson's catalyst; tetraethylammonium bromide;
In
1,4-dioxane; pyridine; ethanol; dichloromethane; water; N,N-dimethyl-formamide; acetone;
DOI:10.1016/S0040-4020(01)98907-0