Multi-step reaction with 7 steps
1: H2SO4
2: 95 percent / H2 / 5percent Pd/C / methanol; benzene / 24 h / 25 °C
3: 83 percent / pyridine / 48 h / Ambient temperature
4: 1) n-BuLi / 1) THF, hexane, -78 deg C, 20 min, 2) THF, -78 deg C, 1 h
5: AcOH, H2O / tetrahydrofuran / 2 h
6: 1) NaNO2, AcOH, 2) NaN3 / 1) THF, H2O, 0 deg C, 5 min, 2) 0 deg C, 10 min
7: 1) NaH / 1) DME, toluene, oil, r.t., 15 min, 2) DME, toluene, 10 min
With
pyridine; n-butyllithium; sodium azide; sulfuric acid; water; hydrogen; sodium hydride; acetic acid; sodium nitrite;
palladium on activated charcoal;
In
tetrahydrofuran; methanol; benzene;
DOI:10.1016/S0040-4020(01)88526-4