2-Thiophenecarboxaldehyde → 1,3-Dimethyl-2-(2-thienyl)imidazolidine

HRID 431503

Reaktionsgleichung

Reaktionsgleichung von HRID 431503
[CH3:1][NH:2][CH2:3][CH2:4][NH:5][CH3:6].[S:7]1[CH:11]=[CH:10][CH:9]=[C:8]1[CH:12]=O>C1(C)C=CC=CC=1>[CH3:1][N:2]1[CH2:3][CH2:4][N:5]([CH3:6])[CH:12]1[C:8]1[S:7][CH:11]=[CH:10][CH:9]=1

Komponenten

4

Edukt 2

HCID 73642-ThiophenecarboxaldehydeHCID 8070N,N'-Dimethylethylenediamine

Produkt 1

HCID 27974811,3-Dimethyl-2-(2-thienyl)imidazolidine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Versuchsvorschrift

23.5 g (267 mmol) of N,N′-dimethylethylenediamine were dissolved in 300 ml of toluene and treated with 29.8 g (266 mmol) of thiophene-2-carbaldehyde. The clear mixture was refluxed for 4 hours using a Dean-Stark trap. After that time 4.9 ml of water had separated in the trap. After cooling, the solution was filtered and evaporated. The oily residue was destilled in vacuo. Yield: 45 g.

Aufarbeitung

  1. temperatureThe clear mixture was refluxed for 4 hours
  2. customAfter that time 4.9 ml of water had separated in the trap
  3. temperatureAfter cooling
  4. filtrationthe solution was filtered
  5. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-1f9eeb3f89254766817b39ea5913bb0e
Quelldatensatz
uspto-grants-2003_12
Patentnummer
US06660728B2

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