Multi-step reaction with 12 steps
1: Dess-Martin periodinane reagent / CH2Cl2 / 1 h
2: 10percent HCl / tetrahydrofuran / 24 h
3: POCl3, pyridine / 1 h / 80 °C
4: 1) OsO4, 2) NaHSO3 / 1) pyridine, 0 deg C, 1 h, 2) 2 h
5: 75 percent / Dess-Martin periodinane reagent / CH2Cl2 / 1.5 h
6: 82 percent / NEt3, DMAP / CH2Cl2
7: 1) LiHMDS, TMSCl, 2) NBS / 1) THF, -78 deg C to rt
8: 93 percent / Li2CO3, LiBr / dimethylformamide / 0.75 h / 120 °C
9: 10percent HCl / tetrahydrofuran / 0.5 h
10: DMAP, pyridine / CH2Cl2
11: 46 percent / BBr3 / CH2Cl2 / 1) -78 deg C, 1 h, 2) -43 deg C, 1.5 h
12: 78 percent / (n-C4H9)4NF / tetrahydrofuran / 0.25 h
With
pyridine; hydrogenchloride; dmap; N-Bromosuccinimide; osmium(VIII) oxide; chloro-trimethyl-silane; tetrabutyl ammonium fluoride; boron tribromide; lithium carbonate; Dess-Martin periodane; sodium hydrogensulfite; triethylamine; lithium bromide; lithium hexamethyldisilazane; trichlorophosphate;
In
tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/S0040-4039(00)74149-9