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N-Hydroxyphthalimide → 2-[3-(2-propyl-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl)propoxy]-1H-isoindole-1,3(2H)-dione

HRID 1992592
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Reaktionsgleichung

Reaktionsgleichung von HRID 1992592
N(C(OC(C)C)=O)=NC(OC(C)C)=O.[CH2:15]([C:18]1[N:19]([CH2:31][CH2:32][CH2:33][OH:34])[C:20]2[C:29]3[N:28]=[CH:27][CH:26]=[CH:25][C:24]=3[N:23]=[CH:22][C:21]=2[N:30]=1)[CH2:16][CH3:17].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.O[N:55]1[C:59](=[O:60])[C:58]2=[CH:61][CH:62]=[CH:63][CH:64]=[C:57]2[C:56]1=[O:65]>O1CCCC1.C(OCC)(=O)C.ClCCl>[CH2:15]([C:18]1[N:19]([CH2:31][CH2:32][CH2:33][O:34][N:55]2[C:59](=[O:60])[C:58]3[C:57](=[CH:64][CH:63]=[CH:62][CH:61]=3)[C:56]2=[O:65])[C:20]2[C:29]3[N:28]=[CH:27][CH:26]=[CH:25][C:24]=3[N:23]=[CH:22][C:21]=2[N:30]=1)[CH2:16][CH3:17]
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Komponenten

8

Edukt 4

HCID 10665N-HydroxyphthalimideHCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 685386673-(2-propyl-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl)propan-1-ol

Produkt 1

HCID 685404202-[3-(2-propyl-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl)propoxy]-1H-isoindole-1,3(2H)-dioneAusbeute 103,8 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 6344DichloromethaneLösungsmittelHCID 8028TetrahydrofuranLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

Diisopropyl azodicarboxylate (8.10 mL, 48.4 mmol) was added dropwise over ten minutes to a stirred solution of 3-(2-propyl-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl)propan-1-ol (10.9 g, 40.3 mmol), triphenylphosphine (12.7 g, 48.4 mmol), and N-hydroxyphthalimide (7.89 g, 48.4 mmol) in tetrahydrofuran (160 mL) at 0° C. The reaction was allowed to warm to room temperature and was stirred overnight. The solvent was removed under reduced pressure to afford an oil that was dissolved in ethyl acetate (200 mL) and extracted with 2 M HCl (3×100 mL). The aqueous layers were combined, and solid sodium bicarbonate was added to adjust the pH to 7. A precipitate formed that was isolated by filtration and dissolved in dichloromethane (300 mL). The solution was dried over magnesium sulfate, filtered, and concentrated to afford 17.38 g of 2-[3-(2-propyl-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl)propoxy]-1H-isoindole-1,3(2H)-dione as a tan solid.

Aufarbeitung

  1. customThe solvent was removed under reduced pressure
  2. customto afford an oil that
  3. extractionextracted with 2 M HCl (3×100 mL)
  4. additionsolid sodium bicarbonate was added
  5. customA precipitate formed
  6. customthat was isolated by filtration
  7. dry with materialThe solution was dried over magnesium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-36e3229cf6674b25b5a38a9c8633d3b2
Quelldatensatz
uspto-grants-2010_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07648997B2

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