tetrabutyl ammonium fluoride in tetrahydrofuran 0.333333 h; Ambient temperature;

2: 72 percent / tetrabutylammonium fluoride trihydrate / tetrahydrofuran / 0.75 h / Ambient temperature 3: NaOH / methanol / 30 h / Ambient temperature; pH 9 View Scheme

1: 65 percent / pyridine / 48 h / Ambient temperature 2: 75 percent / CrO3, pyridine, acetic anhydride / CH2Cl2 / 0.75 h / Ambient temperature 4: 72 percent / tetrabutylammonium fluoride trihydrate / tetrahydrofuran / 0.75 h / Ambient temperature 5: NaOH / methanol / 30 h / Ambient temperature; pH 9 View Scheme

1: 72 percent / tetrabutylammonium fluoride trihydrate / tetrahydrofuran / 0.75 h / Ambient temperature 2: NaOH / methanol / 30 h / Ambient temperature; pH 9 View Scheme

sodium hydroxide in methanol 30 h; Ambient temperaturepH 9; Yield given;