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Aluminium lithium hydride → 2-(4-Chloro-2-methylphenyl)ethanamine

HRID 1021399
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1021399
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]=[CH:9][N+:10]([O-])=O)=[C:4]([CH3:13])[CH:3]=1.[H-].[Al+3].[Li+].[H-].[H-].[H-]>O1CCCC1>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][NH2:10])=[C:4]([CH3:13])[CH:3]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

4

Edukt 2

HCID 21226445Aluminium lithium hydrideHCID 670259694-Chloro-2-methyl-1-(2-nitrovinyl)benzene

Produkt 1

HCID 202519552-(4-Chloro-2-methylphenyl)ethanamineAusbeute 75 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel2×

Versuchsvorschrift

A solution of 4-chloro-2-methyl-1-(2-nitrovinyl)benzene (1.83 g, 9.26 mmol) in tetrahydrofuran (40 mL) was cooled to 0° C. in an ice bath, and a 1M solution of lithium aluminum hydride in tetrahydrofuran (37 mL, 37 mmol) was added, dropwise over 10 minutes. The resulting mixture was stirred in the ice bath for 2 hours 30 minutes, then quenched in the following manner: water (1.5 mL) was added dropwise, and after stirring for 5 minutes, 1M sodium hydroxide (1.5 mL) was added. After stirring for a further 15 minutes, water (5 mL) was added, and the resulting mixture was stirred at ambient temperature for 15 minutes, then filtered through a medium porosity sintered glass funnel. The collected precipitate was washed with ethyl acetate (60 mL). The combined filtrate and wash was dried over sodium sulfate and concentrated to afford 2-(4-chloro-2-methylphenyl)ethanamine as a brown oil (1.17 g, 75% yield).

Aufarbeitung

  1. customquenched in the following manner
  2. additionwater (1.5 mL) was added dropwise
  3. addition1M sodium hydroxide (1.5 mL) was added
  4. stirringAfter stirring for a further 15 minutes
  5. additionwater (5 mL) was added
  6. stirringthe resulting mixture was stirred at ambient temperature for 15 minutes
  7. filtrationfiltered through a medium porosity sintered glass funnel
  8. washThe collected precipitate was washed with ethyl acetate (60 mL)
  9. washThe combined filtrate and wash
  10. dry with materialwas dried over sodium sulfate
  11. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-e8de58fce35d489ebbbdb0c661814e62
Quelldatensatz
uspto-grants-2014_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08716498B2

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