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 4: 85 percent / HCl / methanol / 6 h / Heating 5: 2.) HCl / 1.) CH2Cl2, room temp., 12 h; 2.) 12 h, ether 6: 1.) BBr3; 2.) MeOH, H2SO4 (96percent) / 1.) CH2Cl2, room temp., 140 h; 2.) reflux, 48 h 7: 93 percent / benzoyl t-butyl nitroxide / methanol; CHCl3 / 16 h / Ambient temperature 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 4: 85 percent / HCl / methanol / 6 h / Heating 5: 2.) HCl / 1.) CH2Cl2, room temp., 12 h; 2.) 12 h, ether 6: 1.) BBr3; 2.) MeOH, H2SO4 (96percent) / 1.) CH2Cl2, room temp., 140 h; 2.) reflux, 48 h 7: 93 percent / benzoyl t-butyl nitroxide / methanol; CHCl3 / 16 h / Ambient temperature 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

<b>Multi-step reaction with 2 steps<br /> </b>1: 97 percent / potassium carbonate / acetone / 8 h / Heating<br />2: 98 percent / LiAlH₄ / tetrahydrofuran / 2 h / 0 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 4 steps<br /> </b>1: 88 percent / cc. H₂SO₄ / 20 h / Heating<br />2: 94 percent / ethanol / 3.5 h / 45 &deg;C<br />3: 97 percent / potassium carbonate / acetone / 8 h / Heating<br />4: 98 percent / LiAlH₄ / tetrahydrofuran / 2 h / 0 &deg;C<br /> <br /> &nbsp;