Реакция #96056

Уравнение реакции

4-(4-chloro-3-chlorosulfonylphenyl)-3-methyl-2-phenyliminothiazolidin-4-ol hydrobromide

phosphorus pentoxide

→

4-(4-Chloro-3-chlorosulfonylphenyl)-3-methyl-2-phenylimino-4-thiazoline hydrobromide

Растворители

water

Условия реакции

Обработка

1. 1
   Другоеafter the end of the reaction
2. 2
   Другоеwith recrystallization

Методика

2.5 g (50 mmoles) of 4-(4-chloro-3-chlorosulfonylphenyl)-3-methyl-2-phenyliminothiazolidin-4-ol hydrobromide are heated rapidly in a jacket, which has been preheated to 220° C., in vacuo (0.1 mm Hg) over phosphorus pentoxide. The substance melts with foaming, as a result of the elimination of water, and solidifies immediately after the end of the reaction, with recrystallization. Slightly green colored crystals; melting point 264° C.

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