anhydrous potassium trimethylsilanolate in diethyl ether 24 h; Ambient temperature;

1: 75 percent / LiN(SiMe3)2 / tetrahydrofuran / 0.75 h / -78 °C 2: 78 percent / NaOH / ethanol / 48 h / Heating 4: 85 percent / H2 / Pd/C / methanol / 48 h / 3040 Torr 5: 94 percent / KOSiMe3 / diethyl ether / 24 h / Ambient temperature View Scheme

1: 78 percent / NaOH / ethanol / 48 h / Heating 3: 85 percent / H2 / Pd/C / methanol / 48 h / 3040 Torr 4: 94 percent / KOSiMe3 / diethyl ether / 24 h / Ambient temperature View Scheme

2: 85 percent / H2 / Pd/C / methanol / 48 h / 3040 Torr 3: 94 percent / KOSiMe3 / diethyl ether / 24 h / Ambient temperature View Scheme

1: 85 percent / H2 / Pd/C / methanol / 48 h / 3040 Torr 2: 94 percent / KOSiMe3 / diethyl ether / 24 h / Ambient temperature View Scheme

1: NaOH / ethanol; H2O 2: tetrahydrofuran 3: H2 / Pd/C / methanol 4: 80 percent / LiOH / H2O; methanol View Scheme

1: 9 percent / K2CO3 / acetonitrile / 24 h / Ambient temperature 2: 94 percent / KOSiMe3 / diethyl ether / 24 h / Ambient temperature View Scheme