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Triethylamine → n-Butyl 3-(2-(methylamino)-5-nitropyridin-3-yl)acrylate

HRID 340469
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 340469
C(N(CC)CC)C.[C:8]([O:12][CH2:13][CH2:14][CH2:15][CH3:16])(=[O:11])[CH:9]=[CH2:10].C1(C)C(C(P(C(C2C(C)=CC=CC=2)=O)C(C2C(C)=CC=CC=2)=O)=O)=CC=CC=1.Br[C:46]1[C:47]([NH:55][CH3:56])=[N:48][CH:49]=[C:50]([N+:52]([O-:54])=[O:53])[CH:51]=1>C([O-])(=O)C.[Pd+2].C([O-])(=O)C.O.CN(C=O)C>[CH3:56][NH:55][C:47]1[C:46]([CH:10]=[CH:9][C:8]([O:12][CH2:13][CH2:14][CH2:15][CH3:16])=[O:11])=[CH:51][C:50]([N+:52]([O-:54])=[O:53])=[CH:49][N:48]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

8

Edukt 4

HCID 8471TriethylamineHCID 8846Butyl Acrylate2×HCID 164772163-bromo-N-methyl-5-nitropyridin-2-amineHCID 19696886Tri(o-toluoyl)phosphine2×

Produkt 1

HCID 77522859n-Butyl 3-(2-(methylamino)-5-nitropyridin-3-yl)acrylate

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 167845
palladium(II) acetate
Katalysator
2×
HCID 962WaterLösungsmittel
HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

Triethylamine (32 μl), n-butyl acrylate (33 μl), tri(o-toluoyl)phosphine (24 mg), and palladium acetate (5 mg) were added to a tube containing a DMF (3 ml) solution containing 3-bromo-N-methyl-5-nitropyridin-2-amine (45 mg) and the tube was sealed, followed by stirring at 100° C. for 8 hours. The reaction solution was adjusted to room temperature, and n-butyl acrylate (33 μl), tri(o-toluoyl)phosphine (24 mg), and palladium acetate (5 mg) were added again to the tube and the tube was sealed, followed by stirring at 100° C. for 9 hours. Further, the reaction solution was adjusted to room temperature, and water was added, followed by extraction with ethyl acetate. The resultant was washed with saturated saline and dried over anhydrous sodium sulfate. Subsequently, the solvent was distilled away under reduced pressure, the obtained residue was purified by silica gel chromatography (n-hexane:ethyl acetate=16:1 to 3:1), and a yellow solid of n-butyl 3-(2-(methylamino)-5-nitropyridin-3-yl)acrylate (44 mg) was thus obtained.

Aufarbeitung

  1. customthe tube was sealed
  2. customwas adjusted to room temperature
  3. customthe tube was sealed
  4. stirringby stirring at 100° C. for 9 hours
  5. customwas adjusted to room temperature
  6. extractionfollowed by extraction with ethyl acetate
  7. washThe resultant was washed with saturated saline
  8. dry with materialdried over anhydrous sodium sulfate
  9. distillationSubsequently, the solvent was distilled away under reduced pressure
  10. customthe obtained residue was purified by silica gel chromatography (n-hexane:ethyl acetate=16:1 to 3:1)

Quellen und Nachweise

ORD-Eintrag
ord-21296aae16c54c91b72bf62438a63ade
Quelldatensatz
uspto-grants-2014_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08895585B2

Notizen zur Reaktion

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