2-亚硫基-1,3-恶唑烷-4-one

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture consisting of 3.52 g of trans-1,4-bis[(4-formylphenoxy)methyl]cyclohexane, 2.34 g of 4-oxo-2-thioxooxazolidine, 0.31 g of sodium acetate and 50 ml of acetic acid was subjected to overnight reflux. After spontaneous cooling, crystals thus formed were collected by filtration and recrystallized from dimethylformamide to obtain 3.75 g of trans-1,4-bis[[4-[(4-oxo-2-thioxo-5-oxazolidinylidene)methyl]phenoxy]methyl]cyclohexane (19-a). reflux After spontaneous cooling, crystals thus formed were collected by filtration recrystallized from dimethylformamide