Lawesson's reagent → N-[5-Bromo-4-methyl-3-(3-trifluoromethyl-phenyl)-pyridin-2-yl]-2-(4-methanesulfonyl-phenyl)-thioacetamide

HRID 1497761Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1497761
[Br:1][C:2]1[C:3]([CH3:32])=[C:4]([C:22]2[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:31])([F:30])[F:29])[CH:23]=2)[C:5]([NH:8][C:9](=O)[CH2:10][C:11]2[CH:16]=[CH:15][C:14]([S:17]([CH3:20])(=[O:19])=[O:18])=[CH:13][CH:12]=2)=[N:6][CH:7]=1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:42])=CC=1>C1(C)C=CC=CC=1>[Br:1][C:2]1[C:3]([CH3:32])=[C:4]([C:22]2[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:31])([F:30])[F:29])[CH:23]=2)[C:5]([NH:8][C:9](=[S:42])[CH2:10][C:11]2[CH:16]=[CH:15][C:14]([S:17]([CH3:20])(=[O:19])=[O:18])=[CH:13][CH:12]=2)=[N:6][CH:7]=1

Komponenten

4

Edukt 2

HCID 87949Lawesson's reagent3×HCID 86708096N-[5-Bromo-4-methyl-3-(3-trifluoromethyl-phenyl)-pyridin-2-yl]-2-(4-methanesulfonyl-phenyl)-acetamide

Produkt 1

HCID 86708097N-[5-Bromo-4-methyl-3-(3-trifluoromethyl-phenyl)-pyridin-2-yl]-2-(4-methanesulfonyl-phenyl)-thioacetamideAusbeute 60,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Reaktionsbedingungen

Temperatur
110 °C

Versuchsvorschrift

To a suspension of N-[5-bromo-4-methyl-3-(3-trifluoromethyl-phenyl)-pyridin-2-yl]-2-(4-methanesulfonyl-phenyl)-acetamide (Int. 10, 305 mg, 0.579 mmol) in toluene (15 mL) was added Lawesson's reagent (234 mg, 0.579 mmol) and the reaction mixture was heated at 110° C. for 24 hrs. A further amount of Lawesson's reagent (351 mg) was added and heating was continued for 2.5 hrs before a final addition of Lawesson's reagent (234 mg) was made. The reaction mixture was heated for 19 hrs then cooled, concentrated in vacuo and the resultant residue purified by flash chromatography eluting with a gradient of 0-50% ethyl acetate in cyclohexane to give the title compound as an orange glass (191 mg).

Aufarbeitung

  1. temperatureheating
  2. temperatureThe reaction mixture was heated for 19 hrs
  3. temperaturethen cooled
  4. concentrationconcentrated in vacuo
  5. customthe resultant residue purified by flash chromatography
  6. washeluting with a gradient of 0-50% ethyl acetate in cyclohexane

Quellen und Nachweise

ORD-Eintrag
ord-b674510928574ee0b674f10f2782c2b2
Quelldatensatz
uspto-grants-2015_12
Patentnummer
US09199984B2

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