in hexane; dimethyl sulfoxide 24 h; Ambient temperature;

1: 269 mg / dimethylsulfoxide; hexane / 24 h / Ambient temperature 2: 1.) diisobutylaluminum hydride, 2.) 3N HCL / 1.) benzene, r.t., 3 h, hexane; 2.) MeOH, dioxane, 1 h View Scheme

1: 269 mg / dimethylsulfoxide; hexane / 24 h / Ambient temperature 2: 1.) diisobutylaluminum hydride, 2.) 3N HCL / 1.) benzene, r.t., 3 h, hexane; 2.) MeOH, dioxane, 1 h 3: 81 percent / 3N KOH / methanol / 2 h / Ambient temperature View Scheme

1: 269 mg / dimethylsulfoxide; hexane / 24 h / Ambient temperature 2: 1.) diisobutylaluminum hydride, 2.) 3N HCL / 1.) benzene, r.t., 3 h, hexane; 2.) MeOH, dioxane, 1 h 3: 81 percent / 3N KOH / methanol / 2 h / Ambient temperature 4: 58 percent / Ac2O / pyridine / 1 h View Scheme