Sodium Carbonate → 4-amino-N-butylphthalimide

HRID 1814685

Reaktionsgleichung

Reaktionsgleichung von HRID 1814685
[CH2:1]([N:5]1[C:9](=[O:10])[C:8]2=[CH:11][C:12]([N+:15]([O-])=O)=[CH:13][CH:14]=[C:7]2[C:6]1=[O:18])[CH2:2][CH2:3][CH3:4].S(S([O-])=O)([O-])=O.[Na+].[Na+].C(=O)([O-])[O-].[Na+].[Na+]>CO.O>[CH2:1]([N:5]1[C:9](=[O:10])[C:8]2=[CH:11][C:12]([NH2:15])=[CH:13][CH:14]=[C:7]2[C:6]1=[O:18])[CH2:2][CH2:3][CH3:4]

Komponenten

6

Edukt 3

HCID 10340Sodium CarbonateHCID 24489Sodium DithioniteHCID 932972-Butyl-5-nitro-1H-isoindole-1,3(2H)-dione

Produkt 1

HCID 3289774-amino-N-butylphthalimideAusbeute 59,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 887MethanolLösungsmittelHCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

A solution of N-butyl-4-nitrophthalimide (1.45 g, 5.8 mmol) in methanol (30 mL) was added drop wise to a well stirred solution of sodium dithionite (6.50 g, 37.1 mmol) and sodium carbonate (3.22 g, 30.5 mmol) in water (40 mL), while the temperature was maintained at 70° C. After addition, heating at 70° C. was continued for a further 30 minutes, then the reaction mixture was allowed to cool to room temperature. The reaction volume was reduced to one third by rotary evaporation, and the residual water solution was extracted with diethyl ether (2×50 mL). The combined organic phases were dried with anhydrous Na2SO4, and then taken to dryness. The residual oil was recrystallised from ethanol/water to give 750 mg (59%) of N-butyl-4-aminophthalimide.

Aufarbeitung

  1. additionAfter addition
  2. temperatureheating at 70° C.
  3. temperatureto cool to room temperature
  4. customThe reaction volume was reduced to one third by rotary evaporation
  5. extractionthe residual water solution was extracted with diethyl ether (2×50 mL)
  6. dry with materialThe combined organic phases were dried with anhydrous Na2SO4
  7. customThe residual oil was recrystallised from ethanol/water

Quellen und Nachweise

ORD-Eintrag
ord-464d92844bb64327994ca3e912892ef0
Quelldatensatz
uspto-grants-2005_04
Patentnummer
US06875760B2

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