Sodium sulfide nonahydrate → 2-(2,3-Diamino-5-nitrophenyl)ethanol

Beteiligte Stoffe

Reaktionsschritte

To a suspension of 0.119 mole (27 g) of 2-(2-amino-3,5-dinitrophenyl)ethanol obtained in Example 1 in 67.5 ml of isopropanol to which an equal volume of water has been added, a solutionof 38.4 g of sodium sulphide nonahydrate and 5.4 g of sulphur in 10 ml of water is added dropwise at 60°-65° C. Heating is maintained for 20 minutes after the addition is complete. When the mixture is cooled, a precipitate of the expected product is obtained, and this is drained, made into a paste in water and then recrystallized from 96° strength alcohol. It melts at 172° C.

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