Multi-step reaction with 7 steps
1: 76 percent / diisopropylamine, tetrabutylammonium bromide / CH2Cl2 / 48 h / Ambient temperature
2: 50 percent / acetic acid / toluene / 96 h / Ambient temperature
3: 70 percent / AlCl3, t-BuSH / CH2Cl2 / a) 0 deg C, 10 min, b) RT, 3 h
4: 84 percent / K2CO3 / dimethylformamide / a) 60 deg C, 3 h, b) RT, 15 h
5: 99 percent / NaBH4, CaCl2 / ethanol; tetrahydrofuran / a) 0 deg C, 2 h, b) RT, 14 h
6: triphenylphosphine, diisopropyl azodicarboxylate / tetrahydrofuran / 2 h / Ambient temperature
7: hydrazine hydrate / ethanol / 1 h / Heating
With
sodium tetrahydroborate; aluminium trichloride; di-isopropyl azodicarboxylate; tetrabutylammomium bromide; potassium carbonate; hydrazine hydrate; 2-methylpropan-2-thiol; acetic acid; diisopropylamine; triphenylphosphine; calcium chloride;
In
tetrahydrofuran; ethanol; dichloromethane; N,N-dimethyl-formamide; toluene;
DOI:10.1016/S0968-0896(96)00265-9