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Thiophenol → Methyl 1-[4-(5-trifluoromethylpyridin-2-yl)-piperazin-1-yl]-cyclopropanecarboxylate

HRID 1361432
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1361432
[N+](C1C=CC=CC=1S([N:13]1[CH2:18][CH2:17][N:16]([C:19]2([C:22]([O:24][CH3:25])=[O:23])[CH2:21][CH2:20]2)[CH2:15][CH2:14]1)(=O)=O)([O-])=O.C(=O)([O-])[O-].[K+].[K+].C1(S)C=CC=CC=1.Br[C:40]1[CH:45]=[CH:44][C:43]([C:46]([F:49])([F:48])[F:47])=[CH:42][N:41]=1>CN(C)C=O.C(OCC)(=O)C>[F:47][C:46]([F:49])([F:48])[C:43]1[CH:44]=[CH:45][C:40]([N:13]2[CH2:14][CH2:15][N:16]([C:19]3([C:22]([O:24][CH3:25])=[O:23])[CH2:20][CH2:21]3)[CH2:17][CH2:18]2)=[N:41][CH:42]=1
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Komponenten

7

Edukt 4

HCID 7969ThiophenolHCID 11430Potassium CarbonateHCID 27364342-Bromo-5-(trifluoromethyl)pyridineHCID 66628127Methyl 1-[4-(2-nitrobenzenesulfonyl)-piperazin-1-yl]-cyclopropanecarboxylate

Produkt 1

HCID 66628341Methyl 1-[4-(5-trifluoromethylpyridin-2-yl)-piperazin-1-yl]-cyclopropanecarboxylate

Reagenzien, Katalysatoren, Lösungsmittel

2
HCID 6228DimethylformamideLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

A solution of methyl 1-[4-(2-nitrobenzenesulfonyl)-piperazin-1-yl]-cyclopropanecarboxylate (0.60 g, 1.63 mmol) from Example 16C in anhydrous dimethylformamide (5 mL) was treated with potassium carbonate (0.67 g, 4.88 mmol) and thiophenol (0.21 g, 1.95 mmol) and stirred one hour at room temperature. This reaction mixture was then treated with 2-bromo-5-trifluoromethyl pyridine (0.44 g, 1.95 mmol) and heated overnight at 80° C. Reaction diluted with ethyl acetate, washed with water and brine, dried over Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by normal phase HPLC on a Biotage pre-packed silica gel column eluting with 9:1 hexane:ethyl acetate to afford the title compound. MS(ESI) m/z 330 (M+H)+.

Aufarbeitung

  1. temperatureheated overnight at 80° C
  2. customReaction
  3. washwashed with water and brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by normal phase HPLC on a Biotage pre-packed silica gel column
  8. washeluting with 9:1 hexane

Quellen und Nachweise

ORD-Eintrag
ord-4906c7dcb0734b10afcef6408bcc9539
Quelldatensatz
uspto-grants-2011_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07880001B2

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