Multi-step reaction with 17 steps
1.1: 90 percent / DIBAL-H / CH2Cl2; hexane / 2.5 h / 20 °C
2.1: oxalyl chloride; DMSO; Et3N / CH2Cl2 / -78 - 20 °C
3.1: MgBr2*OEt2 / CH2Cl2 / 0.67 h / -21 °C
3.2: 87 percent / CH2Cl2 / 7 h / -60 °C
4.1: 93 percent / 2,6-lutidine / CH2Cl2 / 3 h / 0 °C
5.1: OsO4; N-methylmorpholine N-oxide / 2-methyl-propan-2-ol; H2O / 6.5 h / 20 °C
6.1: NaIO4 / tetrahydrofuran; H2O / 3 h / 20 °C
7.1: 18-crown-6; KHMDS / tetrahydrofuran; toluene / 0.5 h / 0 °C
7.2: 4.77 g / tetrahydrofuran; toluene / 18 h / -78 °C
8.1: 94 percent / DIBAL-H / CH2Cl2; hexane / 2 h / 20 °C
9.1: MnO2 / CH2Cl2 / 24 h / 20 °C
10.1: diethyl ether / 16 h / -78 °C
10.2: 80 percent / diethyl ether; H2O / 24 h / 20 °C
11.1: 90 percent / imidazole / CH2Cl2 / 6 h / 20 °C
12.1: OsO4; N-methylmorpholine N-oxide / 2-methyl-propan-2-ol; H2O / 12 h / 20 °C
13.1: 80 percent / NaIO4 / tetrahydrofuran; H2O / 2 h / 20 °C
14.1: tetrahydrofuran / 0.5 h / -78 °C
15.1: 73 percent / Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
16.1: 32 percent / Hoveyda-Grubbs catalyst / CH2Cl2 / 72 h / 20 °C
17.1: 96 percent / hydrogen / palladium on carbon / ethyl acetate / 9 h / 20 °C
With
1H-imidazole; 2,6-dimethylpyridine; manganese(IV) oxide; sodium periodate; osmium(VIII) oxide; oxalyl dichloride; 18-crown-6 ether; hydrogen; potassium hexamethylsilazane; diisobutylaluminium hydride; Dess-Martin periodane; dimethyl sulfoxide; 4-methylmorpholine N-oxide; triethylamine; magnesium bromide;
[1,3-bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(O-isopropoxyphenylmethylene)ruthenium; palladium on activated charcoal;
In
tetrahydrofuran; diethyl ether; hexane; dichloromethane; water; ethyl acetate; toluene; tert-butyl alcohol;
2.1: Swern oxidation / 7.2: Still-Gennari olefination;
DOI:10.1016/j.tet.2007.02.107