反应详情

To a solution of 1.75 g. (0.01 mole) of N-acetyl-2-(acetylthio) acetamide in 20 ml. of dimethylformamide was added 0.5 g. of 50% sodium hydride. After evolution of hydrogen stopped, there was added 1.5 ml. of benzyl chloride and the reaction mixture was heated on a steam bath for 4 hours. The product was chromatographed by thin layer chromatography eluting with 40% ethylacetate/hexane, then 15 g. of silica gel was added and the product was stripped in vacuo. The prepack was chromatographed on 200 g. of silica gel, eluting with 15% ethylacetate/hexane. A yield of 0.65 g. of product was recrystallized from isopropanol, m.p. 86°-87° C.

1. additionthere was added 1.5 ml
2. customThe product was chromatographed by thin layer chromatography
3. washeluting with 40% ethylacetate/hexane
4. additionof silica gel was added
5. customThe prepack was chromatographed on 200 g
6. washof silica gel, eluting with 15% ethylacetate/hexane
7. customof product was recrystallized from isopropanol, m.p. 86°-87° C.