Aniline → 3,3-Dianilino-1-(2,6-dichloro-5-fluoro-3-pyridinyl)-2-propen-1-one

HRID 2183770Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2183770
Cl[C:2](Cl)=[CH:3][C:4]([C:6]1[C:7]([Cl:14])=[N:8][C:9]([Cl:13])=[C:10]([F:12])[CH:11]=1)=[O:5].[NH2:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1>O1CCOCC1>[NH:16]([C:2]([NH:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)=[CH:3][C:4]([C:6]1[C:7]([Cl:14])=[N:8][C:9]([Cl:13])=[C:10]([F:12])[CH:11]=1)=[O:5])[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1

Komponenten

4

Edukt 2

HCID 6115AnilineHCID 219481323,3-Dichloro-1-(2,6-dichloro-5-fluoro-3-pyridinyl)-2-propen-1-one

Produkt 1

HCID 219481383,3-Dianilino-1-(2,6-dichloro-5-fluoro-3-pyridinyl)-2-propen-1-oneAusbeute 49 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

To a 0° C. solution of 3,3-dichloro-1-(2,6-dichloro-5-fluoro-3-pyridinyl)-2-propen-1-one (6.70 g, 23.2 mmol) in dioxane (50 mL) was added TEA (9.7 mL, 69.6) followed by aniline (6.3 mL, 69.6 mmol). After 1 h the reaction was allowed to warm to room temperature and was stirred overnight. The mixture was concentrated in vacuo until most of the solvent was removed and then the residue was diluted with water and extracted with CH2Cl2 (2×). The combined organic extracts were washed with water, dried over Na2SO4 and concentrated in vacuo. Purification of the residue by silica gel Biotage chromatography provided 3,3-dianilino-1-(2,6-dichloro-5-fluoro-3-pyridinyl)-2-propen-1-one as yellow solid (4.2 g, 49%): LCMS RT: 3.47 min; MH+: 402.6.

Aufarbeitung

  1. concentrationThe mixture was concentrated in vacuo until most of the solvent
  2. customwas removed
  3. additionthe residue was diluted with water
  4. extractionextracted with CH2Cl2 (2×)
  5. washThe combined organic extracts were washed with water
  6. dry with materialdried over Na2SO4
  7. concentrationconcentrated in vacuo
  8. customPurification of the residue by silica gel Biotage chromatography

Quellen und Nachweise

ORD-Eintrag
ord-d038dcbd261d4be38c18c89562cdac27
Quelldatensatz
uspto-grants-2005_05
Patentnummer
US06900205B2

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