Ethanol → HCID 23359031, Verbindung

HRID 232666Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 232666
F[C:2]1[C:7]([F:8])=[C:6]([Cl:9])[C:5]([N+:10]([O-:12])=[O:11])=[C:4]([F:13])[C:3]=1[CH3:14].C(O)C.[CH3:18][N:19]1[CH2:24][CH2:23][NH:22][CH2:21][CH2:20]1>O.C(N(CC)CC)C>[CH3:18][N:19]1[CH2:24][CH2:23][N:22]([C:2]2[C:7]([F:8])=[C:6]([Cl:9])[C:5]([N+:10]([O-:12])=[O:11])=[C:4]([F:13])[C:3]=2[CH3:14])[CH2:21][CH2:20]1

Komponenten

6

Edukt 3

HCID 702EthanolHCID 531671-MethylpiperazineHCID 23358995HCID 23358995, Verbindung

Produkt 1

HCID 23359031HCID 23359031, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittel2×HCID 8471TriethylamineLösungsmittel

Versuchsvorschrift

To 2,3,6-trifluoro-4-chloro-5-nitrotoluene (0.17 g) are added ethanol (3.3 ml), water (0.5 ml), N-methyl-piperazine (0.45 ml) and triethylamine (0.56 ml) and the mixture is refluxed for 24 hours. After the reaction is completed, water is added to the reaction mixture and the mixture is extracted with diethyl ether, and the extract is washed with water and dried. The solvent is distilled off under reduced pressure and the residue is purified by silica-gel column-chromatography (eluent; dichloromethane: methanol =20:1) to give 2-(4-methyl-1-piperazinyl)-3,6-difluoro-4-chloro-5-nitrotoluene (0.13 g).

Aufarbeitung

  1. temperaturethe mixture is refluxed for 24 hours
  2. extractionthe mixture is extracted with diethyl ether
  3. washthe extract is washed with water
  4. customdried
  5. distillationThe solvent is distilled off under reduced pressure
  6. customthe residue is purified by silica-gel column-chromatography (eluent; dichloromethane: methanol =20:1)

Quellen und Nachweise

ORD-Eintrag
ord-a11e228301d64d1ca8a12148506daa14
Quelldatensatz
uspto-grants-1997_01
Patentnummer
US05591744

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