Phosphorus tribromide → 1,3-Dithiolane, 4-bromomethyl-2-phenyl-

Participants

Reaction Conditions

Reaction Steps

4-Hydroxymethyl 2-phenyl 1,3-dithiolane (30 g., 0.14 mole) was suspended in 150 ml of ether and cooled to 0°C. Phosphorus tribromide (15 g., 0.053 mole) were added over a 1.5 hour period and the mixture was stirred at ambient temperature with 5% aqueous NaHCO3 until neutral (ph = 7). After drying over MgSO4 the solvent was removed under vacuum to yield 38 g. (99%) of desired product.

Provenance & Evidence