Multi-step reaction with 8 steps
1: 89 percent / pyridine / 24 h / 20 °C
2: 1)dimethyl sulfoxide/acetic anhydride, 2)sodium borohydride / 1)1.5h, 70 deg C, 2)1h, room temperature
3: 85 percent / triethylamine / dioxane / 1 h / 20 °C
4: 89 percent / tin tetrachloride / 1,2-dichloro-ethane / 0.08 h / 20 °C
5: 78 percent / triphenylphosphine/carbon tetrabromide / dimethylformamide / 16 h / 20 °C
6: 100 percent / 4 h / Heating
7: sulfuric acid / acetic acid / 18 h / 20 °C
8: 30 percent / trimethylsilyl trifluoromethanesulfonate / 1,2-dichloro-ethane / 16 h / 20 °C
With
pyridine; sodium tetrahydroborate; carbon tetrabromide; trimethylsilyl trifluoromethanesulfonate; sulfuric acid; acetic anhydride; tin(IV) chloride; dimethyl sulfoxide; triethylamine; triphenylphosphine;
In
1,4-dioxane; acetic acid; 1,2-dichloro-ethane; N,N-dimethyl-formamide;