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Sodium Carbonate → 4-[2-(2-Methoxynicotinamido)-ethyl]pyridine

HRID 1730288
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1730288
[NH2:1][CH2:2][CH2:3][C:4]1[CH:9]=[CH:8][N:7]=[CH:6][CH:5]=1.[C:10](=[O:13])([O-])[O-].[Na+].[Na+].[CH3:16][O:17][C:18]1[N:25]=[CH:24][CH:23]=[CH:22][C:19]=1CCl>O.C(Cl)Cl>[CH3:16][O:17][C:18]1[N:25]=[CH:24][CH:23]=[CH:22][C:19]=1[C:10]([NH:1][CH2:2][CH2:3][C:4]1[CH:9]=[CH:8][N:7]=[CH:6][CH:5]=1)=[O:13]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 10340Sodium CarbonateHCID 832754-PyridineethanamineHCID 149329453-(Chloromethyl)-2-methoxypyridine

Produkt 1

HCID 124252384-[2-(2-Methoxynicotinamido)-ethyl]pyridine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6344
Dichloromethane
Lösungsmittel
2×

Versuchsvorschrift

A 3 liter, three neck, round bottom flask equipped with a mechanical stirrer, reflux condenser and dropping funnel was charged with 4-(2-aminoethyl)pyridine (61.0 g., 0.5 mole) in 50 ml. of methylene chloride. Sodium carbonate (124.0 g., 1.0 mole) in water was added in one portion, and with stirring the heterogeneous reaction mixture was cooled in an ice-bath. 2-Methoxynicotinyl chloride (86 g., 0.5 mole) in methylenechloride (500 ml.) was added drop-wise and the mixture was allowed to warm to room temperature as vigorous stirring was continued for 2 hours. At this point the organic layer was removed and the aqueous layer extracted twice with 100 ml. portions of methylene chloride. The combined organic layers were then extracted three times with cold, dilute (0.5N) sodium hydroxide. The organic layer was dried over sodium sulfate, filtered and concentrated in vacuo to a yellow oil, which solidified upon standing, affording 97 g. (0.37 mmole, 75%) of product. Recrystallization from cyclohexane gave the analytical sample, a white crystalline solid, m.p. 84°-97°.

Aufarbeitung

  1. customA 3 liter, three neck, round bottom flask equipped with a mechanical stirrer
  2. temperaturereflux condenser
  3. temperaturewas cooled in an ice-bath
  4. stirringas vigorous stirring
  5. customAt this point the organic layer was removed
  6. extractionthe aqueous layer extracted twice with 100 ml
  7. extractionThe combined organic layers were then extracted three times with cold,
  8. additiondilute (0.5N) sodium hydroxide
  9. dry with materialThe organic layer was dried over sodium sulfate
  10. filtrationfiltered
  11. concentrationconcentrated in vacuo to a yellow oil, which
  12. customaffording 97 g
  13. customRecrystallization from cyclohexane
  14. customgave the analytical sample

Quellen und Nachweise

ORD-Eintrag
ord-d5160a2d81284fe7a4f8c0f48dee3c98
Quelldatensatz
uspto-grants-1976_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US03992388

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