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Triethylamine → 2-(4-Chlorophenyl)-N-[4-(dimethylamino)phenyl]-N-methyl-3H-imidazo [4,5-b]pyridine-3-acetamide

HRID 622004
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 622004
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[N:16]([CH2:17][C:18]([OH:20])=O)[C:11]3=[N:12][CH:13]=[CH:14][CH:15]=[C:10]3[N:9]=2)=[CH:4][CH:3]=1.C(Cl)(=O)C(Cl)=O.[CH3:27][N:28]([CH3:37])[C:29]1[CH:34]=[CH:33][C:32]([NH:35][CH3:36])=[CH:31][CH:30]=1.C(N(CC)CC)C>CN(C)C=O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[N:16]([CH2:17][C:18]([N:35]([C:32]3[CH:33]=[CH:34][C:29]([N:28]([CH3:27])[CH3:37])=[CH:30][CH:31]=3)[CH3:36])=[O:20])[C:11]3=[N:12][CH:13]=[CH:14][CH:15]=[C:10]3[N:9]=2)=[CH:6][CH:7]=1
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Komponenten

6

Edukt 4

HCID 8471TriethylamineHCID 65578Oxalyl chlorideHCID 5915951,4-Benzenediamine, N,N,N'-trimethyl-HCID 143904574-chlorophenyl-3H-imidazo[4,5-b]pyridine-3-acetic acid

Produkt 1

HCID 143903702-(4-Chlorophenyl)-N-[4-(dimethylamino)phenyl]-N-methyl-3H-imidazo [4,5-b]pyridine-3-acetamideAusbeute 92 %

Reagenzien, Katalysatoren, Lösungsmittel

1
HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A suspension of 2-(4-chlorophenyl)-3H-imidazo[4,5-b]pyridine-3-acetic acid (5.0 g, 0.0174 mole) in dry dimethylformamide (75 ml) was cooled in an ice bath and oxalyl chloride (2.2 g, 0.0172 mole) was added dropwise, with stirring, under nitrogen. The reaction mixture was stirred at room temperature for 3.5 hours and then N,N,N'-trimethyl-1,4-benzenediamine (2.9 g, 0.0193 mole) was added dropwise. The reaction mixture was stirred at room temperature under nitrogen overnight, poured into 400 ml of ice water and made basic with triethylamine (6 ml). The resulting white solid was collected by filtration, dissolved in hot isopropyl alcohol, treated with charcoal, and filtered while hot. Water was added to the cloud point and upon cooling, a solid precipitated. The gray solid was collected by filtration and rinsed with water to yield 6.6 g (92%) of product. A 1.0-g sample was dried under high vacuum to give 0.6 g of title compound, mp 152°-155° C.

Aufarbeitung

  1. temperaturewas cooled in an ice bath
  2. stirringThe reaction mixture was stirred at room temperature for 3.5 hours
  3. stirringThe reaction mixture was stirred at room temperature under nitrogen overnight
  4. filtrationThe resulting white solid was collected by filtration
  5. dissolutiondissolved in hot isopropyl alcohol
  6. additiontreated with charcoal
  7. filtrationfiltered while hot
  8. additionWater was added to the cloud point
  9. temperatureupon cooling
  10. customa solid precipitated
  11. filtrationThe gray solid was collected by filtration
  12. washrinsed with water

Quellen und Nachweise

ORD-Eintrag
ord-6c84c187498e4363a9d350e2356b981f
Quelldatensatz
uspto-grants-1989_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US04824951

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