p-Toluenesulfonic acid → HCID 22670708, compound

Participants

Reaction Steps

2-Methyl-3-phenylthiopropanal (9.07 g, 0.05 mole), 3-buten-2-ol (18.04 g, 0.25 mole), and p-toluenesulfonic acid (0.24 g, 0.0013 mole) are added to 90 ml of xylenes. The reaction mixture is heated to reflux using a Dean-Stark trap to collect water. After 3 hours, the mixture is cooled to room temperature and quenched with 30 ml of saturated NaHCO3 solution. The two phases are separated and the aqueous phase is extracted with 30 ml of ethyl acetate. The combined organic extracts is washed with 20 ml of brine and dried with Na2SO4. After removing solvents, the crude product is purified by chromatography. The product is obtained in 74.3% as a colorless oil.

Provenance & Evidence