Potassium Carbonate → 6-Fluoro-3-methylimidazo[1,2-a]pyridin-2-amine

HRID 1971634Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1971634
FC(F)(F)C([NH:5][C:6]1[N:7]=[C:8]2[CH:13]=[CH:12][C:11]([F:14])=[CH:10][N:9]2[C:15]=1[CH3:16])=O.C(=O)([O-])[O-].[K+].[K+]>CO.O>[F:14][C:11]1[CH:12]=[CH:13][C:8]2[N:9]([C:15]([CH3:16])=[C:6]([NH2:5])[N:7]=2)[CH:10]=1

Komponenten

5

Edukt 2

HCID 11430Potassium CarbonateHCID 576074742,2,2-trifluoro-N-(6-fluoro-3-methylimidazo[1,2-a]pyridin-2-yl)acetamide

Produkt 1

HCID 576074616-Fluoro-3-methylimidazo[1,2-a]pyridin-2-amine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 887MethanolLösungsmittelHCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

2,2,2-trifluoro-N-(6-fluoro-3-methylimidazo[1,2-a]pyridin-2-yl)acetamide (0.188 g, 0.00072 mol) was dissolved in methanol (4.0 mL) and water (0.5 mL). Potassium carbonate (0.40 g, 0.0029 mol) was added and heated in the microwave for 45 min at 100° C. The solvent concentrated and residue was partitioned between water (50 mL) and ethyl acetate (50 mL). The layers were separated and the organic layer was dried (magnesium sulfate) then chromatographed on silica (55:40:5, DCM:acetonitrle:MeOH) to give 6-fluoro-3-methylimidazo[1,2-a]pyridin-2-amine Rf 0.47, (55:40:5, DCM:acetonitrle:MeOH); MS m/z 166 (M+H).

Aufarbeitung

  1. concentrationThe solvent concentrated
  2. customresidue was partitioned between water (50 mL) and ethyl acetate (50 mL)
  3. customThe layers were separated
  4. dry with materialthe organic layer was dried (magnesium sulfate)
  5. customthen chromatographed on silica (55:40:5, DCM:acetonitrle:MeOH)

Quellen und Nachweise

ORD-Eintrag
ord-2a58be0708f443308d5504e2e42851ab
Quelldatensatz
uspto-grants-2013_04
Patentnummer
US08431608B2

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