sodium tetrahydroborate; diphenyl diselenide; dihydrogen peroxide 1.) ethanol, THF, 2.5 h, reflux; 2.) THF, ethanol, 3 h, 0 deg C; Yield given. Multistep reaction;

With  N-bromosuccinmide; dibenzoyl peroxide in  tetrachloromethane 6 h;  Heating;   

Multi-step reaction with 4 steps 1: 77 percent / K2CO3, potassium tert-butoxide / dimethylformamide; tetrahydrofuran / Ambient temperature2: 88 percent / sodium acetate, H2 / 10percent Pd/C / benzene; acetic anhydride / 24 h3: 65 percent / pyridine / 12 h4: 48 mg / N-bromosuccinimide (NBS), benzoyl peroxide / CCl4 / 0.33 h / Heating  

Multi-step reaction with 5 steps 1: 93 percent / sodium dithionite / H2O; dioxane / 0.5 h / Ambient temperature2: 77 percent / K2CO3, potassium tert-butoxide / dimethylformamide; tetrahydrofuran / Ambient temperature3: 88 percent / sodium acetate, H2 / 10percent Pd/C / benzene; acetic anhydride / 24 h4: 65 percent / pyridine / 12 h5: 48 mg / N-bromosuccinimide (NBS), benzoyl peroxide / CCl4 / 0.33 h / Heating  

With  lithium carbonate; hydroquinone; lithium bromide in  N,N-dimethyl-formamide T=110°C;