Triethylamine → 5-chloro-N-cyclopropylpyrazolo[1,5-a]pyrimidin-7-amine

HRID 624690

Reaktionsgleichung

Reaktionsgleichung von HRID 624690
[Cl:1][C:2]1[CH:7]=[C:6](Cl)[N:5]2[N:9]=[CH:10][CH:11]=[C:4]2[N:3]=1.CCN(CC)CC.[CH:19]1([NH2:22])[CH2:21][CH2:20]1>C(#N)C>[Cl:1][C:2]1[CH:7]=[C:6]([NH:22][CH:19]2[CH2:21][CH2:20]2)[N:5]2[N:9]=[CH:10][CH:11]=[C:4]2[N:3]=1

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 69828CyclopropylamineHCID 110741545,7-Dichloropyrazolo[1,5-a]pyrimidine

Produkt 1

HCID 581966065-chloro-N-cyclopropylpyrazolo[1,5-a]pyrimidin-7-amineAusbeute 70,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

To 5,7-dichloropyrazolo[1,5-a]pyrimidine (200 mg, 1.06 mmol) in ACN was added Et3N (148 μl, 1.06 mmol) and cyclopropylamine (75 μl, 1.06 mmol). The reaction was refluxed at 80° C. overnight. The mixture was concentrated under reduced pressure, dissolved in DCM, and washed with water. The resulting organic layer was dried over Na2SO4 and concentrated under reduced pressure to afford 156 mg of 5-chloro-N-cyclopropylpyrazolo[1,5-a]pyrimidin-7-amine (70% yield). LCMS (M+1=209)

Aufarbeitung

  1. concentrationThe mixture was concentrated under reduced pressure
  2. dissolutiondissolved in DCM
  3. washwashed with water
  4. dry with materialThe resulting organic layer was dried over Na2SO4
  5. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-d784bf12373e48f48cc28f5bfcc160ed
Quelldatensatz
uspto-grants-2016_04
Patentnummer
US09303033B2

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