Water → 5-Benzyloxy-2-(4-benzyloxyphenyl)isoindoline-1,3-dione

HRID 853798Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 853798
[OH:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[C:7](=[O:11])[N:6]([C:12]1[CH:17]=[CH:16][C:15]([OH:18])=[CH:14][CH:13]=1)[C:5]2=[O:19].C(=O)([O-])[O-].[K+].[K+].[CH2:26](Br)[C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1.O>CN(C=O)C>[CH2:26]([O:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[C:7](=[O:11])[N:6]([C:12]1[CH:17]=[CH:16][C:15]([O:18][CH2:5][C:4]3[CH:8]=[CH:9][CH:10]=[CH:2][CH:3]=3)=[CH:14][CH:13]=1)[C:5]2=[O:19])[C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1

Komponenten

6

Edukt 4

HCID 962WaterHCID 7498Benzyl BromideHCID 11430Potassium CarbonateHCID 197939855-Hydroxy-2-(4-hydroxyphenyl)-1H-isoindole-1,3(2H)-dione

Produkt 1

HCID 694715505-Benzyloxy-2-(4-benzyloxyphenyl)isoindoline-1,3-dioneAusbeute 186 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel2×

Versuchsvorschrift

To 5-hydroxy-2-(4-hydroxyphenyl)isoindoline-1,3-dione (2.08 g) in DMF (20 mL) was added potassium carbonate (4.62 g) and a solution of benzyl bromide (3.07 g) in DMF (3.0 mL) dropwise under nitrogen atmosphere. The reaction was stirred at room temperature for 2 h then heated to 80° C. for 3 h. The mixture was cooled to room temperature, poured into water (250 mL) and let sit undisturbed for 2.0 h. The white solid was collected by filtration and washed with water. The solid was dried under high vacuum at 50° C. for 18 h yielding the title compound (3.30 g) as a white solid. 1H NMR (DMSO-d6): 7.87 (d, 1H, J=8.4 Hz), 7.48-7.35 (m, 12H), 7.32 (d, 2H, J=8.7 Hz), 7.13 (d, 2H, J=8.7 Hz), 5.35 (s, 2H), 5.17 (s, 2H); MS: 436 (MH+).

Aufarbeitung

  1. temperaturethen heated to 80° C. for 3 h
  2. temperatureThe mixture was cooled to room temperature
  3. waitlet sit undisturbed for 2.0 h
  4. filtrationThe white solid was collected by filtration
  5. washwashed with water
  6. customThe solid was dried under high vacuum at 50° C. for 18 h

Quellen und Nachweise

ORD-Eintrag
ord-e63d17cc269a4f1fbad3885b5a44b3c6
Quelldatensatz
uspto-grants-2007_08
Patentnummer
US07256201B2

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