Thionyl Chloride → HCID 13823482, Verbindung

HRID 652237Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 652237
[F:1][C:2]1[CH:3]=[C:4]([CH2:8][N:9]2[C:13](=[O:14])[CH2:12][CH2:11][CH:10]2[C:15]([OH:17])=O)[CH:5]=[CH:6][CH:7]=1.S(Cl)(Cl)=O.[Cl-].[Al+3].[Cl-].[Cl-]>ClCCl>[F:1][C:2]1[CH:7]=[CH:6][C:5]2[C:15](=[O:17])[CH:10]3[CH2:11][CH2:12][C:13](=[O:14])[N:9]3[CH2:8][C:4]=2[CH:3]=1

Komponenten

5

Reaktionsbedingungen

Temperatur
5 °C

Versuchsvorschrift

To a solution of 50.00 g of (±)-1-[(3-fluorophenyl)methyl]-5-oxo-2-pyrrolidine carboxylic acid in sieve dried dichloromethane (450 ml), 27.48 g of thionyl chloride was added, and the resultant solution was stirred and refluxed for 5 hours. An infrared spectrum of the solution indicated the presence of the acid chloride. After standing overnight at ambient temperature, the solution was chilled to 5° C. and 84 g of aluminum chloride was added in portions with vigorous stirring. The reaction was exothermic and there was a slow evolution of gas. The mixture was stirred at ambient temperature for 3 hours. The reaction was quenched by the addition of ice chips and water. The two phases of the mixture was separated and the aqueous phase was extracted with dichloromethane (4×150 ml). The combined organic phase was dried (Na2SO4) and concentrated to a solid (69.73 g).

Aufarbeitung

  1. temperaturerefluxed for 5 hours
  2. customThe reaction was quenched by the addition of ice chips and water
  3. customThe two phases of the mixture was separated
  4. extractionthe aqueous phase was extracted with dichloromethane (4×150 ml)
  5. dry with materialThe combined organic phase was dried (Na2SO4)
  6. concentrationconcentrated to a solid (69.73 g)

Quellen und Nachweise

ORD-Eintrag
ord-9da04a2ac2344ff7a7ab63ac73bafd0b
Quelldatensatz
uspto-grants-1987_06
Patentnummer
US04670562

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