1.1: LDA; HMPA / tetrahydrofuran / 0.5 h / -78 °C 1.2: 89 percent / tetrahydrofuran / 24 h / -78 °C 2.1: 82 percent / LiBH4 / methanol; tetrahydrofuran / 2 h / 0 °C 3.1: 89 percent / pyridine; DMAP / 5 h / 20 °C 4.1: 100 percent / Grubbs first generation catalyst / toluene / 12 h / 80 °C 5.1: LAH / tetrahydrofuran / 12 h / 20 °C 6.1: toluene / 12 h / 80 °C 6.2: 0.21 g / K2CO3 / methanol / 12 h 7.1: 82 percent / O2 / benzene / 20 h / Irradiation View Scheme