Reaktion #4854
ord-5155b74041e040c5848aa97537ebe3cb
Reaktionsgleichung
Reagenzien
Keine
Lösungsmittel
Reaktionsbedingungen
Temperatur
70°CELSIUS
Detaillierte Bedingungen
See reaction.notes.procedure_details.
Aufarbeitung
- 1Temperaturthe reaction mixture is cooled
- 2SonstigeThe precipitate formed
- 3Sonstigethen dried under vacuum
- 4Sonstigeis recrystallized from 170 ml of dioxane
- 5SonstigeAfter being dried under vacuum
Vorschrift
0.39 Mole (88 g) of 2,3-dihydro-5,7-dinitro-2-methylbenzofuran, prepared according to J.A.C.S. 80, p. 4711-4714 (1958), is suspended in 1.1 l of 20% strength ammonia solution and 600 ml of Methyl Cellosolve. After 18 hours' heating at 70° C., the reaction mixture is cooled. The precipitate formed is drained and, after being made into a paste in water until neutral and then dried under vacuum, is recrystallized from 170 ml of dioxane. After being dried under vacuum, 0.30 mole (72 g) of the expected product is obtained; it melts at 177° C.