Multi-step reaction with 10 steps
1: 1.) Zn / 1.) THF, 2.) THF, 0 deg C, 1 h
2: 84 percent / 4-(dimethylamino)pyridine / CH2Cl2 / 2 h / -30 - -20 °C
3: 67 percent / tetrabutylammonium fluoride / tetrahydrofuran / 1.) 0 deg C, 4 h, 2.) 20 deg C, 40 min
4: 77 percent / pyridinium p-toluenesulfonate / CH2Cl2 / 24 h / 20 °C
5: 96 percent / NaOMe / methanol / 2 h / 20 °C
6: 67 percent / Jones reagent / acetone / 0.25 h / -20 °C
7: aq. AcOH / tetrahydrofuran / 4.5 h / 40 °C
8: 99 percent / H2 / Lindlar catalyst / benzene; cyclohexane; cyclohexene / 0.33 h / 20 °C / 760 Torr
9: 46 percent / L-Selectride / tetrahydrofuran / 0.25 h / -78 °C
10: 99 percent / 0.6 M aq. NaOH / methanol / 4.5 h / 20 °C
With
dmap; sodium hydroxide; jones reagent; tetrabutyl ammonium fluoride; hydrogen; sodium methylate; pyridinium p-toluenesulfonate; L-Selectride; acetic acid; zinc;
Lindlar's catalyst;
In
tetrahydrofuran; methanol; dichloromethane; cyclohexane; acetone; cyclohexene; benzene;
DOI:10.1016/S0040-4020(01)88868-2