Triethylamine → (E)-2-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl]-ethenesulfonic acid amide

HRID 1498513Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1498513
Br[C:2]1[CH:23]=[CH:22][C:5]2[C:6]3[N:7]([CH:11]=[C:12]([C:14]4[N:18]([CH:19]([CH3:21])[CH3:20])[N:17]=[CH:16][N:15]=4)[N:13]=3)[CH2:8][CH2:9][O:10][C:4]=2[CH:3]=1.[CH:24]([S:26]([NH2:29])(=[O:28])=[O:27])=[CH2:25].C(N(CC)CC)C.C1(C)C=CC=CC=1P(C1C=CC=CC=1C)C1C=CC=CC=1C>CN(C=O)C.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH:19]([N:18]1[C:14]([C:12]2[N:13]=[C:6]3[N:7]([CH2:8][CH2:9][O:10][C:4]4[CH:3]=[C:2](/[CH:25]=[CH:24]/[S:26]([NH2:29])(=[O:28])=[O:27])[CH:23]=[CH:22][C:5]=43)[CH:11]=2)=[N:15][CH:16]=[N:17]1)([CH3:21])[CH3:20]

Komponenten

7

Edukt 4

HCID 8471TriethylamineHCID 80271Tri-o-tolylphosphineHCID 520075Vinyl sulfonamideHCID 582043138-bromo-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene

Produkt 1

HCID 58204452(E)-2-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl]-ethenesulfonic acid amideAusbeute 35,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 167845palladium(II) acetateKatalysatorHCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
130 °C

Versuchsvorschrift

8-Bromo-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene 194 (400 mg, 1.07 mmol), ethenesulfonic acid amide (172 mg, 1.60 mmol), triethylamine (223 μL, 1.60 mmol), tri-o-tolyl-phosphane (65 mg, 0.21 mmol) and palladium (II) acetate (12 mg, 0.05 mmol) were suspended in DMF (5 mL) and the reaction mixture degassed by bubbling argon through the suspension. The reaction mixture was heated at 130° C. for 16 h, before cooling to RT and diluting the mixture with ethyl acetate (10 mL). The resultant mixture was washed with water, extracted with ethyl acetate (2×10 mL) and the combined organic extracts washed with brine, dried (MgSO4) then concentrated in vacuo. The resultant residue was subjected to flash chromatography (SiO2, eluting with 0-10% methanol in DCM) to yield the title compound as a white solid (151 mg, 35%) LCMS: RT=2.69 min, [M+H]+=401.

Aufarbeitung

  1. customthe reaction mixture degassed
  2. customby bubbling argon through the suspension
  3. temperaturebefore cooling to RT
  4. additiondiluting the mixture with ethyl acetate (10 mL)
  5. washThe resultant mixture was washed with water
  6. extractionextracted with ethyl acetate (2×10 mL)
  7. washthe combined organic extracts washed with brine
  8. dry with materialdried (MgSO4)
  9. concentrationthen concentrated in vacuo
  10. washThe resultant residue was subjected to flash chromatography (SiO2, eluting with 0-10% methanol in DCM)

Quellen und Nachweise

ORD-Eintrag
ord-2be4d3f8dcd542a59706fc3ca9b851cd
Quelldatensatz
uspto-grants-2015_12
Patentnummer
US09198918B2

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