Water → 6-(cyclobutylmethyl-ethyl-amino)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carbaldehyde

HRID 1911728Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1911728
C(=O)([O-])[O-].[K+].[K+].Cl[C:8]1[N:13]=[C:12]2[N:14]([CH3:18])[N:15]=[C:16]([CH3:17])[C:11]2=[CH:10][C:9]=1[CH:19]=[O:20].[CH:21]1([CH2:25][NH:26][CH2:27][CH3:28])[CH2:24][CH2:23][CH2:22]1.O>CN(C=O)C.C(OCC)(=O)C>[CH:21]1([CH2:25][N:26]([CH2:27][CH3:28])[C:8]2[N:13]=[C:12]3[N:14]([CH3:18])[N:15]=[C:16]([CH3:17])[C:11]3=[CH:10][C:9]=2[CH:19]=[O:20])[CH2:24][CH2:23][CH2:22]1

Komponenten

7

Edukt 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 162286606-Chloro-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carbaldehydeHCID 23366322(Cyclobutylmethyl)(ethyl)amine

Produkt 1

HCID 574444326-(cyclobutylmethyl-ethyl-amino)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carbaldehydeAusbeute 87 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 8857Ethyl AcetateLösungsmittel2×

Versuchsvorschrift

Potassium carbonate (0.83 g, 6 mmol) was added to a solution of 6-chloro-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-5-carbaldehyde (1.04 g, 5.0 mmol) and cyclobutylmethyl-ethyl-amine (0.8 g, 7.0 mmol) in anhydrous DMF (8 mL) under nitrogen. After stirring for 0.5 h at RT, the reaction mixture was heated for 14 h at 80° C. Thereafter, the reaction was cooled to RT, water (30 mL) and ethyl acetate (30 mL) were added, and the organic layer was separated from the aqueous mixture. The organic extract was washed with brine, dried over sodium sulfate and the solvent was evaporated in vacuo. The residue was purified by chromatography using silica gel (200-400 mesh) and eluted with 20-60% hexane:ethyl acetate to afford the title compound as a pale yellow liquid (1.23 g, yield: 87%).

Aufarbeitung

  1. temperaturethe reaction mixture was heated for 14 h at 80° C
  2. temperatureThereafter, the reaction was cooled to RT
  3. customthe organic layer was separated from the aqueous mixture
  4. extractionThe organic extract
  5. washwas washed with brine
  6. dry with materialdried over sodium sulfate
  7. customthe solvent was evaporated in vacuo
  8. customThe residue was purified by chromatography
  9. washeluted with 20-60% hexane

Quellen und Nachweise

ORD-Eintrag
ord-38d8ccd0553a42baa947a930ddad4305
Quelldatensatz
uspto-grants-2013_12
Patentnummer
US08604055B2

Notizen zur Reaktion

Wird geladen…