1: 82 percent / pyridinium tolunen-p-sulfonate, LiBr / N,N-dimethyl-acetamide / 5 h / 160 °C 2: 80 percent / OsO4, K3<Fe(CN)6>, 1,4-bis(0-O-dihydroquinidinyl)phthalazine, K2CO3, methanesulfonamide / 2-methyl-propan-2-ol; H2O / 15 h / Ambient temperature View Scheme