Dimethylformamide → HCID 57551827, Verbindung

HRID 907333Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 907333
P(Cl)(Cl)(Cl)=O.[Br:6][C:7]1[CH:8]=[C:9]2[C:14](=[CH:15][CH:16]=1)[C:13](=[O:17])[N:12]([CH2:18][C:19]1[CH:24]=[CH:23][C:22]([S:25]([CH3:28])(=[O:27])=[O:26])=[CH:21][CH:20]=1)[CH:11]=[CH:10]2.CN([CH:32]=[O:33])C>>[Br:6][C:7]1[CH:8]=[C:9]2[C:14](=[CH:15][CH:16]=1)[C:13](=[O:17])[N:12]([CH2:18][C:19]1[CH:24]=[CH:23][C:22]([S:25]([CH3:28])(=[O:26])=[O:27])=[CH:21][CH:20]=1)[CH:11]=[C:10]2[CH:32]=[O:33]

Komponenten

4

Versuchsvorschrift

DMF (10 mL) was cooled in an ice bath and phosphorus oxychloride (1.4 mL) added over 20 seconds. The solution was stirred for 10 minutes at room temperature then a solution of the product of step i) (2.0 g) in DMF (4 mL) was added over 5 minutes. The mixture was heated at 95° C. for 16 hours then allowed to cool and poured onto ice/water. The mixture was then extracted into ethyl acetate (100 mL) the organics combined and evaporated under reduced pressure. The residue was purified (SiO2 chromatography, eluting with 1:1 ethyl acetate:isohexane) to give the sub-titled compound (1.5 g).

Aufarbeitung

  1. temperatureThe mixture was heated at 95° C. for 16 hours
  2. temperatureto cool
  3. additionpoured onto ice/water
  4. extractionThe mixture was then extracted into ethyl acetate (100 mL) the
  5. customevaporated under reduced pressure
  6. customThe residue was purified
  7. wash(SiO2 chromatography, eluting with 1:1 ethyl acetate:isohexane)

Quellen und Nachweise

ORD-Eintrag
ord-481810dd02aa4214b9f2b4c564e2f059
Quelldatensatz
uspto-grants-2011_09
Patentnummer
US08012979B2

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