1: 1.) O3, 2.) triphenylphosphine / 1.) CH2Cl2, -78 deg C, 2.) CH2Cl2, -78 deg C, 30 min 2: 1.) phenyllithium / 1.) THF, 2.) benzene, THF, 3 min 3: 85 percent / aq. acetic acid / tetrahydrofuran / 15 h 4: H2, NaHCO3; / 5percent Pt/C / benzene; ethanol / 24 h 5: NaOH / benzene; methanol / 0.33 h / Ambient temperature 6: 1.) hydrazine, 2.) dianisyl telluroxide / 1.) ethanol, reflux, overnight, 2.) water, CH2Cl2, 1,2-dibromotetrachloroethane, 5 h 7: 82 percent / triethylamine, anthracene / benzene / 1 h / Irradiation View Scheme