1: 2,6-lutidine / CH2Cl2 / 0.17 h / Ambient temperature 2: MeOH / CH2Cl2 / 0.25 h / Ambient temperature 3: Et3N / CH2Cl2 / 3 h 4: pyridine*HF / 2 h / Ambient temperature 5: 1,3,5-trimethyl-benzene / 3.5 h / 165 °C 6: 63 percent / KF, KHCO3, 30 percent aq. H2O2 / tetrahydrofuran; methanol / 1.5 h / Heating 7: pyridine, DMAP / CH2Cl2 / 0.5 h / Ambient temperature 8: AIBN, tributyltin hydride / benzene / 1 h / Heating 9: 88 percent / LiAlH4 / tetrahydrofuran; diethyl ether / 18 h / Ambient temperature View Scheme