Multi-step reaction with 8 steps
1: 1) n-BuLi / 1) THF, hexane, -78 deg C, 1 h, 2) THF, -78 deg C, 1 h
2: 100 percent / NaH / dimethylformamide / Ambient temperature
3: 10percent aq. oxalic acid / CH2Cl2 / 1 h
4: NaBH4 / CH2Cl2; methanol / 1 h / 0 °C
5: 91 percent / imidazole / dimethylformamide / 16 h / Ambient temperature
6: 1) BH3, 2) 30percent H2O2, 3 M NaOH / 1) THF, r.t., 90 min, 2) H2O, r.t., 90 min
7: 91 percent / diisopropylethylamine / CH2Cl2 / 1.5 h / 0 °C
8: 95 percent / NaN3 / dimethylformamide / 14 h / 80 °C
With
1H-imidazole; sodium hydroxide; sodium tetrahydroborate; n-butyllithium; sodium azide; borane; dihydrogen peroxide; oxalic acid; sodium hydride; N-ethyl-N,N-diisopropylamine;
In
methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/jm00126a038