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Sodium hydride → 4-Chloro-3-(2-chloro-phenyl)-6-methylsulfanyl-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidine

HRID 230191
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 230191
[Cl:1][C:2]1[N:7]=[C:6]([S:8][CH3:9])[N:5]=[C:4]2[NH:10][N:11]=[C:12]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=3[Cl:19])[C:3]=12.Cl[CH2:21][O:22][CH2:23][CH2:24][Si:25]([CH3:28])([CH3:27])[CH3:26].[H-].[Na+]>CN(C=O)C>[Cl:1][C:2]1[N:7]=[C:6]([S:8][CH3:9])[N:5]=[C:4]2[N:10]([CH2:21][O:22][CH2:23][CH2:24][Si:25]([CH3:28])([CH3:27])[CH3:26])[N:11]=[C:12]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=3[Cl:19])[C:3]=12
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 24758Sodium hydrideHCID 27242712-Chloromethyl 2-(trimethylsilyl)ethyl etherHCID 178503465HCID 178503465, Verbindung

Produkt 1

HCID 578933704-Chloro-3-(2-chloro-phenyl)-6-methylsulfanyl-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidineAusbeute 60,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228
Dimethylformamide
Lösungsmittel

Versuchsvorschrift

4-Chloro-3-(2-chloro-phenyl)-6-methylsulfanyl-1H-pyrazolo[3,4-d]pyrimidine (10.0 g, 0.032 mol) was added to 100 mL of dry DMF, and the resulting solution was cooled to 0° C. (2-Chloromethoxy-ethyl)-trimethyl-silane (6.8 mL, 0.038 mol) was added dropwise, and the reaction mixture was stirred for five minutes. Sodium hydride (1.40 g, 0.0333 mol) was then added, and the reaction mixture was stirred for 30 minutes at 0° C. The reaction mixture was partitioned between water and ethyl acetate. The layers were separated, and the aqueous layer was washed twice with ethyl acetate. The combined organic layers were washed with brine, washed with water, dried over MgSO4, filtered, and concentrated under reduced pressure. The residue was purified by flash chromatography (0% to 10% hexanes in EtOAc) to afford 8.55 g of 4-Chloro-3-(2-chloro-phenyl)-6-methylsulfanyl-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidine.

Aufarbeitung

  1. additionwas added dropwise
  2. stirringthe reaction mixture was stirred for 30 minutes at 0° C
  3. customThe reaction mixture was partitioned between water and ethyl acetate
  4. customThe layers were separated
  5. washthe aqueous layer was washed twice with ethyl acetate
  6. washThe combined organic layers were washed with brine
  7. washwashed with water
  8. dry with materialdried over MgSO4
  9. filtrationfiltered
  10. concentrationconcentrated under reduced pressure
  11. customThe residue was purified by flash chromatography (0% to 10% hexanes in EtOAc)

Quellen und Nachweise

ORD-Eintrag
ord-46624269d2384babbddc291ebc8c7061
Quelldatensatz
uspto-grants-2009_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07566708B2

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