1-Bromo-3-chloropropane → 7-(3-Chloropropoxy)-1-ethyl-3,3,5-trimethyl-1,5-dihydrobenzo[b][1,4]diazepine-2,4-dione

HRID 69041

Reaktionsgleichung

Reaktionsgleichung von HRID 69041
[CH2:1]([N:3]1[C:9](=[O:10])[C:8]([CH3:12])([CH3:11])[C:7](=[O:13])[N:6]([CH3:14])[C:5]2[CH:15]=[C:16]([OH:19])[CH:17]=[CH:18][C:4]1=2)[CH3:2].C(=O)([O-])[O-].[K+].[K+].Br[CH2:27][CH2:28][CH2:29][Cl:30]>O.C(#N)C>[Cl:30][CH2:29][CH2:28][CH2:27][O:19][C:16]1[CH:17]=[CH:18][C:4]2[N:3]([CH2:1][CH3:2])[C:9](=[O:10])[C:8]([CH3:12])([CH3:11])[C:7](=[O:13])[N:6]([CH3:14])[C:5]=2[CH:15]=1

Komponenten

6

Edukt 3

HCID 80061-Bromo-3-chloropropaneHCID 11430Potassium CarbonateHCID 686733851-Ethyl-7-hydroxy-3,3,5-trimethyl-1,5-dihydrobenzo[b][1,4]diazepine-2,4-dione

Produkt 1

HCID 686732537-(3-Chloropropoxy)-1-ethyl-3,3,5-trimethyl-1,5-dihydrobenzo[b][1,4]diazepine-2,4-dione

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittel2×HCID 6342AcetonitrileLösungsmittel

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

1-Ethyl-7-hydroxy-3,3,5-trimethyl-1,5-dihydrobenzo[b][1,4]diazepine-2,4-dione (1.85 g) and potassium carbonate (1.2 g) were added to 50% water-containing acetonitrile (40 ml), and dissolved by heating to 70° C. 1-Bromo-3-chloropropane (2.1 ml) was added thereto, and heating was conducted under reflux for 6 hours. The reaction mixture was cooled to room temperature. Water was added, and extraction with ethyl acetate was performed. The organic layer was dried over sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=2:1→1:1). The purified product was concentrated to dryness under reduced pressure to give the title compound (2.18 g) as a colorless oil.

Aufarbeitung

  1. dissolutiondissolved
  2. temperatureheating
  3. temperatureunder reflux for 6 hours
  4. temperatureThe reaction mixture was cooled to room temperature
  5. extractionextraction with ethyl acetate
  6. dry with materialThe organic layer was dried over sodium sulfate
  7. concentrationconcentrated under reduced pressure
  8. customThe residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=2:1→1:1)
  9. concentrationThe purified product was concentrated to dryness under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-dc4fc11f1f1b439887be7a99fd8501b6
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08822453B2

Verknüpfte Notizen

Wird geladen…