1: 85 percent / HCl / methanol / 6 h / Heating 2: 2.) HCl / 1.) CH2Cl2, room temp., 12 h; 2.) 12 h, ether 3: 1.) BBr3; 2.) MeOH, H2SO4 (96percent) / 1.) CH2Cl2, room temp., 140 h; 2.) reflux, 48 h 4: 93 percent / benzoyl t-butyl nitroxide / methanol; CHCl3 / 16 h / Ambient temperature View Scheme

in xylene 4 h; Heating;

1: NaOMe / methanol / -10 °C 2: xylene / Heating View Scheme

1: 98 percent / LiAlH4 / tetrahydrofuran / 2 h / 0 °C 2: 80 percent / manganese (IV) oxide / CHCl3; methanol / 20 h / Ambient temperature 3: 73 percent / NaOMe / methanol / 2 h / -15 °C 4: 87 percent / xylene / 4 h / Heating View Scheme

1: 97 percent / potassium carbonate / acetone / 8 h / Heating 2: 98 percent / LiAlH4 / tetrahydrofuran / 2 h / 0 °C 3: 80 percent / manganese (IV) oxide / CHCl3; methanol / 20 h / Ambient temperature 4: 73 percent / NaOMe / methanol / 2 h / -15 °C 5: 87 percent / xylene / 4 h / Heating View Scheme

1: 88 percent / cc. H2SO4 / 20 h / Heating 2: 94 percent / ethanol / 3.5 h / 45 °C 3: 97 percent / potassium carbonate / acetone / 8 h / Heating 4: 98 percent / LiAlH4 / tetrahydrofuran / 2 h / 0 °C 5: 80 percent / manganese (IV) oxide / CHCl3; methanol / 20 h / Ambient temperature 6: 73 percent / NaOMe / methanol / 2 h / -15 °C 7: 87 percent / xylene / 4 h / Heating View Scheme

1: 80 percent / manganese (IV) oxide / CHCl3; methanol / 20 h / Ambient temperature 2: 73 percent / NaOMe / methanol / 2 h / -15 °C 3: 87 percent / xylene / 4 h / Heating View Scheme

1: 94 percent / ethanol / 3.5 h / 45 °C 2: 97 percent / potassium carbonate / acetone / 8 h / Heating 3: 98 percent / LiAlH4 / tetrahydrofuran / 2 h / 0 °C 4: 80 percent / manganese (IV) oxide / CHCl3; methanol / 20 h / Ambient temperature 5: 73 percent / NaOMe / methanol / 2 h / -15 °C 6: 87 percent / xylene / 4 h / Heating View Scheme

1: HCl / methanol / Heating 2: CH2Cl2 3: 21 percent / BBr3 / CH2Cl2 4: 93 percent / tBuN(O)COPh / CH2Cl2; methanol View Scheme