1,2-Dibromoethane → N-Allyl-N-(2-bromo-ethyl)-2-nitro-benzenesulfonamide

Participants

Reaction Steps

N-Allyl-2-nitro-benzenesulfonamide (570 mg, 2.35 mmol) is dissolved in DMF (5 mL) and then CsCO3 (920 mg, 2.82 mmol) and 1,2-dibromoethane (884 mg, 4.71 mmol) is added. The mixture is then microwaved for 30 min at 150° C., then filtered and the solid washed with EtOAc (30 mL). The organic is washed with Brine (20 mL) and then dried over Na2SO4 and then concentrated to dryness. HPLC (CH3CN/H2O/0.1% TFA) provides N-Allyl-N-(2-bromo-ethyl)-2-nitro-benzenesulfonamide (400 mg, 48%). MS-ES [M+H]+=351.1.

Provenance & Evidence