pyridinium chlorochromate

1: 1.) NaH / 1.) THF, 0 deg C, 10 min, 2.) THF, 20 min 2: 2.77 g / DIBAL-H / tetrahydrofuran / 1 h / -30 °C 3: 2.4 g / pyridinium chlorochromate, Celite / CH2Cl2 / 1 h View Scheme

1: 2.77 g / DIBAL-H / tetrahydrofuran / 1 h / -30 °C 2: 2.4 g / pyridinium chlorochromate, Celite / CH2Cl2 / 1 h View Scheme