Multi-step reaction with 8 steps
1: 82 percent / POCl3 / 1,2-dichloro-ethane / 1 h / 50 °C
2: 98 percent / K2CO3, 18-crown-6 / acetonitrile / 10 h / 70 °C
3: 94 percent / TBAF / tetrahydrofuran / 2 h / Ambient temperature
4: 89 percent / PPh3, HN3, DEAD / CH2Cl2 / 1 h / 0 °C
5: 99 percent / KOH / tetrahydrofuran; methanol / 3 h / Heating
6: 82 percent / DCC, DMAP / CH2Cl2 / 1 h / Ambient temperature
7: 96 percent / aq. KMnO4, KH2PO4 / 2-methyl-propan-2-ol / 0.5 h / Ambient temperature
8: 84 percent / DCC, HOBT / dimethylformamide / 12 h / 40 °C
With
dmap; potassium hydroxide; potassium permanganate; potassium dihydrogenphosphate; 18-crown-6 ether; tris-(2-chloro-ethyl)-amine; tetrabutyl ammonium fluoride; potassium carbonate; benzotriazol-1-ol; dicyclohexyl-carbodiimide; triphenylphosphine; diethylazodicarboxylate; trichlorophosphate;
In
tetrahydrofuran; methanol; dichloromethane; 1,2-dichloro-ethane; N,N-dimethyl-formamide; acetonitrile; tert-butyl alcohol;