Multi-step reaction with 9 steps
1: 73 percent / DMAP / CH2Cl2 / 15 h / Ambient temperature
2: n-Bu4NF / tetrahydrofuran / 0.5 h / 0 °C
3: DMAP, pyridine / CH2Cl2 / 1.5 h / Ambient temperature
4: 84 percent / NaBH4 / ethanol; tetrahydrofuran; CH2Cl2 / 6 h / 0 °C
5: 63 percent / POCl3, pyridine / 4 h / 100 °C
6: 1. OsO4, 2. NaHSO3 / 1. THF, pyridine, a. 1h, RT, b. 20min; 2. H2O, pyridine, RT, 1h; or MCPBA
7: 73 percent / Ag2O / acetonitrile / 1 h / 80 °C
8: 81 percent / DMAP, DCC / CH2Cl2 / Ambient temperature
9: 19 percent / 3M H2SO4, 12M HCl / methanol / 30 h / Heating
With
pyridine; hydrogenchloride; dmap; sodium tetrahydroborate; osmium(VIII) oxide; sulfuric acid; tetrabutyl ammonium fluoride; sodium hydrogensulfite; dicyclohexyl-carbodiimide; silver(l) oxide; trichlorophosphate;
In
tetrahydrofuran; methanol; ethanol; dichloromethane; acetonitrile;
DOI:10.1021/jo00289a027