4-(3-Chloropropyl)morpholine → 4,4'-[1,3,4-Thiadiazole-2,5-diylbis(sulfanediylpropane-3,1-diyl)]bis(morpholine)

Participants

Reaction Steps

A mixture of 17.0 grams (0.075 mole) of 2,5-dimercapto-1,3,4-thiadiazole dipotassium salt and 24.5 grams (0.150 mole) of 4-(3-chloropropyl)-morpholine in 170 ml of water was heated under reflux with stirring for two hours. The mixture was then cooled to between 28 and 30° C and extracted with benzene. The benzene extract was washed with a saturated sodium chloride solution and dried over anhydrous sodium carbonate. After removal of the drying agent by filtration, the solution was evaporated to dryness, leaving the 2,5-bis(3-(4-morpholinyl)propylthio)-1,3,4-thiadiazole as a pale yellow oil. The product was recrystallized from methylcyclohexane to give white crystals with a melting point of 65.5°-66° C.

Provenance & Evidence