1: 1.) MCPBA, 2.) 10 N KOH / 1.) CH2Cl2, reflux, 18 h 2: 1.) KOH, 2.) HCl 3: 80 percent / EDCl, DMAP / CH2Cl2 4: BBr3 / CH2Cl2 / Ambient temperature 5: 1.) APTS, 2.) Et3N / 1.) reflux 6: 1.) H2, 2.) LiAlH4 / 1.) Pd/C / 1.) MeOH, 2.) Et2O, reflux View Scheme

1: 1.) MCPBA, 2.) 10 N KOH / 1.) CH2Cl2, reflux, 18 h 2: 1.) KOH, 2.) HCl 3: 80 percent / EDCl, DMAP / CH2Cl2 4: BBr3 / CH2Cl2 / Ambient temperature 5: 1.) APTS, 2.) Et3N / 1.) reflux 6: 1.) H2, 2.) LiAlH4 / 1.) Pd/C / 1.) MeOH, 2.) Et2O, reflux View Scheme

aluminium trichloride in carbon disulfide T=0°C; Yield given. Yields of byproduct given. Title compound not separated from byproducts;

hydrogenchloride 20 h; Heating;

1: 1.) AlCl3, 2.) 28percent NH4OH / 1.) CS2, r.t., overnight, 2.) EtOH, r.t., 72 h 2: 75 percent / HCl / 24 h / Heating View Scheme

aluminium trichloride; N,N-dimethyl-formamide 12 h; Ambient temperature; Title compound not separated from byproducts;