反应详情

To a solution of 1.74 g, 3-ethyl-2-oximino-4-thiazolidinone in 25 ml of dioxane cooled to 20°C was added to a solution 2.53 g of N-methyl-N-(trichloromethanesulfenyl) carbamyl fluoride in 25 ml dioxane. To this mixture was added dropwise with external cooling 1.37 g of triethylamine. After stirring for 25 minutes the solution was diluted with 150 ml of water. The solid product was filtered off, dissolved in ethylacetate, dried and concentrated. Crystallized from acetone. Weight 2.8 g., m.p. 126°-128°C.

1. additionTo this mixture was added dropwise
2. filtrationThe solid product was filtered off
3. dissolutiondissolved in ethylacetate
4. customdried
5. concentrationconcentrated
6. customCrystallized from acetone