Реакция #96058

Уравнение реакции

2-bromo-4'-chloro-3'-sulfamoylacetophenone

3-methyl-1-phenylthiourea

→

4-(4-Chloro-3-sulfamoylphenyl)-3-methyl-2-phenyliminothiazolidin-4-ol hydrobromide

Растворители

acetone

acetone

Условия реакции

Обработка

1. 1
   workup.ADDITIONduring this addition the reaction temperature should not
2. 2
   Другоеrise above 30° C
3. 3
   workup.STIRRINGAfter stirring for 5 hours at room temperature
4. 4
   Фильтрацияthe crystals are filtered off

Методика

A solution of 3.13 g (0.01 mole) of 2-bromo-4'-chloro-3'-sulfamoylacetophenone in 50 ml of acetone is added to a solution of 1.66 g (0.01 mole) of 3-methyl-1-phenylthiourea in 100 ml of acetone, whilst stirring with a magnetic stirrer; during this addition the reaction temperature should not rise above 30° C. After stirring for 5 hours at room temperature, the crystals are filtered off. Melting point 164° C. (with decomposition).

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