Ethanol → 5-Bromo-1-pentanesulfonic Acid Sodium Salt

Participants

Reaction Steps

To a solution of 1,5-dibromopentane (23.2 g, 101 mmol), ethanol (40 mL) and water (40 mL) was dropwise added a solution of sodium sulfite (4.24 g, 33.6 mmol) in water (15 mL) under heating under reflux over 2 hr. After heating under reflux for 2 hr, the solvent was distilled away under reduced pressure and n-hexane/ethanol was added. The precipitated crystals were washed with n-hexane and dried in vacuo to give the title compound (3.81 g, 45%).

Provenance & Evidence