Multi-step reaction with 10 steps
1.1: 78 percent / ZnCl2
2.1: 98 percent / Dess-Martin reagent / CH2Cl2 / 30 h / 20 °C
3.1: 99 percent / catecholborane; (S)-5,5-diphenyl-2-methyl-3,4-propano-1,3,2-oxazaborolidine / tetrahydrofuran / 24 h / -30 °C
4.1: 95 percent / 4-(dimethylamino)pyridine / CH2Cl2 / 1.5 h / 20 °C
5.1: SO2Cl2 / CH2Cl2; diethyl ether / 1.5 h / 20 °C
5.2: 99 percent / H2O / acetone / 0.67 h / Heating
6.1: 75 percent / diethyl ether / 20 °C
7.1: 98 percent / H2 / Pd-C / tetrahydrofuran
8.1: 77 percent / I2; NaI; NaHCO3 / H2O; 1,2-dichloro-ethane / 0.67 h / Heating
9.1: 97 percent / H2; sodium acetate / PtO2 / methanol
10.1: NaN(Si(CH3)3)2 / tetrahydrofuran / 0.08 h / 80 °C
With
dmap; sulfuryl dichloride; hydrogen; iodine; sodium acetate; sodium hexamethyldisilazane; sodium hydrogencarbonate; Dess-Martin periodane; sodium iodide; zinc(II) chloride; (S)-1-methyl-3,3-diphenyl-hexahydropyrrolo[1,2-c][1,3,2]oxazaborole; benzo[1,3,2]dioxaborole;
platinum(IV) oxide; palladium on activated charcoal;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; water; 1,2-dichloro-ethane;
DOI:10.1016/S0040-4020(01)00780-3