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Hexane → 1-Methyl-5-(5-morpholinomethyl-2-n-propoxyphenyl)-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

HRID 327053
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 327053
Cl[CH2:2][C:3]1[CH:4]=[CH:5][C:6]([O:23][CH2:24][CH2:25][CH3:26])=[C:7]([C:9]2[NH:10][C:11](=[O:22])[C:12]3[N:17]([CH3:18])[N:16]=[C:15]([CH2:19][CH2:20][CH3:21])[C:13]=3[N:14]=2)[CH:8]=1.[NH:27]1[CH2:32][CH2:31][O:30][CH2:29][CH2:28]1.CCCCCC>CC(=O)CC>[CH3:18][N:17]1[C:12]2[C:11](=[O:22])[NH:10][C:9]([C:7]3[CH:8]=[C:3]([CH2:2][N:27]4[CH2:32][CH2:31][O:30][CH2:29][CH2:28]4)[CH:4]=[CH:5][C:6]=3[O:23][CH2:24][CH2:25][CH3:26])=[N:14][C:13]=2[C:15]([CH2:19][CH2:20][CH3:21])=[N:16]1
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Komponenten

5

Edukt 3

HCID 8058HexaneHCID 8083MorpholineHCID 1361162095-(5-Chloromethyl-2-n-propoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo-[4,3-d]pyrimidin-7-one

Produkt 1

HCID 1361601131-Methyl-5-(5-morpholinomethyl-2-n-propoxyphenyl)-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-oneAusbeute 53 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6569
Methyl Ethyl Ketone
Lösungsmittel
2×

Versuchsvorschrift

A solution of 5-(5-chloromethyl-2-n-propoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-pyrimidin-7-one (Preparation 16, 0.60 g, 0.0016 mol) in 2-butanone (10 ml) was added dropwise to a stirred solution of morpholine (0.42 g, 0.0048 mol) in 2-butanone (40 ml) at 0° C. The solution was then heated under reflux for 16 hours, cooled and evaporated under vacuum. The residue was suspended in water (50 ml) and the suspension extracted with ethyl acetate (3×20 ml). The organic extracts were combined, washed with brine (2×30 ml), dried (Na2SO4) and evaporated under vacuum. The residue was chromatographed on silica gel (12 g), using an elution gradient of methanol in dichloromethane (0-2% methanol), to give an oil which solidified on trituration with hexane. Crystallisation from ethyl acetate-hexane gave the title compound as a colourless solid (0.36 g, 53%), m.p. 106°-107° C. Found C,64.76; H,7.34; N,16.36. C23H31N5O3 requires C,64.92; H,7.34; N,16.46%.

Aufarbeitung

  1. temperatureThe solution was then heated
  2. temperatureunder reflux for 16 hours
  3. temperaturecooled
  4. customevaporated under vacuum
  5. extractionthe suspension extracted with ethyl acetate (3×20 ml)
  6. washwashed with brine (2×30 ml)
  7. dry with materialdried (Na2SO4)
  8. customevaporated under vacuum
  9. customThe residue was chromatographed on silica gel (12 g)
  10. customto give an oil which
  11. customCrystallisation from ethyl acetate-hexane

Quellen und Nachweise

ORD-Eintrag
ord-6fd6221243344aac80ea7d762d4f0484
Quelldatensatz
uspto-grants-1993_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05272147

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