1: 0.130 g / 1) n-butyllithium / THF, -75 deg C, 1) 1 min, 2) 30 min 2: 80 percent / 1) Zn/Cu, 2) 25percent acetic acid / tetrahydrofuran / 0.83 h / Heating View Scheme

1: 0.130 g / 1) n-butyllithium / THF, -75 deg C, 1) 1 min, 2) 30 min 2: 93 percent / 2percent aq acetic acid / tetrahydrofuran / 1) 0 deg C, 15 min, 2) 3.25 h, room temperature View Scheme