In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact.20196-21-8, Thiomorpholin-3-one it is a common compound, a new synthetic route is introduced below., 20196-21-8
Preparation 6 4-Benzylthiomorpholin-3-one Under a nitrogen atmosphere in a flame-dried flask, sodium hydride (4.65 g, 0.105 mol, 54% oil dispersion) was added to 150 mL of anhydrous dimethylformamide (DMF), and the suspension was cooled to 0 C. Thiomorpholin-3-one (11.7 g, 0.1 mol) was added in portions over 30 minutes with stirring. After gas evolution had stopped (ca. 30 minutes), benzyl chloride (12.1 g, 0.105 mol) in DMF (50 mL) was added and stirring was continued at room temperature overnight. The reaction was then warmed to 80 C. for 15 minutes and cooled. Water (250 mL) was added and the mixture was extracted with chloroform which was dried (MgSO4) and concentrated in vacuo to an oil. The oil was triturated with ethyl ether (Et2O) and cooled by dry ice to give the product, 12.75 g as a solid, m.p. 60-42 C. Recrystallization of 5 g from 100 mL of Et2O gave 3.5 g of pure product, m.p. 62-43 C. along with a second crop of 0.75 g with m.p. 62-43 C.
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 20196-21-8, and friends who are interested can also refer to it.
Reference£º
Patent; Pfizer INC; US6423708; (2002); B1;,
Thiomorpholine – Wikipedia
Thiomorpholine | C4H9NS – PubChem