4-Hydroxybenzaldehyde → HCID 22344627, Verbindung

HRID 584366Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 584366
Cl.[Cl:2][C:3]1[N:8]2[CH:9]=[C:10]([CH2:12]Cl)[N:11]=[C:7]2[CH:6]=[CH:5][CH:4]=1.[OH:14][C:15]1[CH:22]=[CH:21][C:18]([CH:19]=[O:20])=[CH:17][CH:16]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[Cl:2][C:3]1[N:8]2[CH:9]=[C:10]([CH2:12][O:14][C:15]3[CH:22]=[CH:21][C:18]([CH:19]=[O:20])=[CH:17][CH:16]=3)[N:11]=[C:7]2[CH:6]=[CH:5][CH:4]=1

Komponenten

6

Edukt 4

HCID 1264-HydroxybenzaldehydeHCID 6228DimethylformamideHCID 11430Potassium CarbonateHCID 223446015-Chloro-2-(chloromethyl)imidazo(1,2-a)pyridine hydrochloride

Produkt 1

HCID 22344627HCID 22344627, VerbindungAusbeute 98 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A mixture of 5-chloro-2-(chloromethyl)imidazo[1,2-a]pyridine hydrochloride (3.00 g), 4-hydroxybenzaldehyde (1.81 g), potassium carbonate (6.14 g) and N,N-dimethylformamide (30 ml) was stirred at room temperature for 15 hours, poured into water and extracted with ethyl acetate. The ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride, dried (MgSO4) and concentrated. The remaining crystals were recrystallized from ethyl acetate-hexane to obtain 4-(5-chloroimidazo[1,2-a]pyridin-2-ylmethoxy)benzaldehyde (3.55 g, yield 98%) as colorless crystals. m.p. 126-130° C.

Aufarbeitung

  1. extractionextracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated
  5. customThe remaining crystals were recrystallized from ethyl acetate-hexane

Quellen und Nachweise

ORD-Eintrag
ord-02105ee29273479baa357b2207ccf53d
Quelldatensatz
uspto-grants-2005_08
Patentnummer
US06924300B2

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