2-(4-bromophenyl)propan-1-amine

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 3.00 g (14.3 mmol) 2-(4-bromo-phenyl)-propionitrile and 40 mL ammonia solution (7N in methanol) is charged with 0.30 g Raney nickel. The mixture is stirred under an atmosphere of hydrogen (50 psi) at r.t. for 34 h. The mixture is filtered and the solvent is removed in vacuo. The crude product is used without further purification. The mixture is filtered the solvent is removed in vacuo The crude product is used without further purification

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2-Phenyl-propylamine (1 g, 7.4 mmol) was dissolved in n-hexane (30 mL) and HBr/aq (5 drops) together with ZnBr on silica (1.75 mmol/g, 1 g). Br2 (14.8 mmol, 900 μL) was slowly added and the slurry was stirred over night. The slurry was diluted with ethyl acetate (300 mL) and washed with 2M Na2CO3 (300 mL). The organic phase was dried over Na2SO4, filtered and evaporated to dryness. Purification and separation of regioisomers was done on semi prep-HPLC C18-column (H2O:CH3CN, 1% NH4OAc buffer, gradient 10% to 60% CH3CN, 30 min). Yield 23% washed with 2M Na2CO3 (300 mL) The organic phase was dried over Na2SO4 filtered evaporated to dryness Purification and separation of regioisomers was done on semi prep-HPLC C18-column (H2O:CH3CN, 1% NH4OAc buffer, gradient 10% to 60% CH3CN, 30 min)