Pyrazole → (5-Methanesulfonyl-2-pyrazol-1-yl-phenyl)-[4-(4-trifluoromethyl-phenyl)-piperazin-1-yl]-methanone

HRID 32764

Reaktionsgleichung

Reaktionsgleichung von HRID 32764
I[C:2]1[CH:7]=[CH:6][C:5]([S:8]([CH3:11])(=[O:10])=[O:9])=[CH:4][C:3]=1[C:12]([N:14]1[CH2:19][CH2:18][N:17]([C:20]2[CH:25]=[CH:24][C:23]([C:26]([F:29])([F:28])[F:27])=[CH:22][CH:21]=2)[CH2:16][CH2:15]1)=[O:13].[NH:30]1[CH:34]=[CH:33][CH:32]=[N:31]1.C(=O)([O-])[O-].[K+].[K+].N[C@@H]1CCCC[C@H]1N>[Cu]I.O1CCOCC1>[CH3:11][S:8]([C:5]1[CH:6]=[CH:7][C:2]([N:30]2[CH:34]=[CH:33][CH:32]=[N:31]2)=[C:3]([C:12]([N:14]2[CH2:19][CH2:18][N:17]([C:20]3[CH:25]=[CH:24][C:23]([C:26]([F:29])([F:28])[F:27])=[CH:22][CH:21]=3)[CH2:16][CH2:15]2)=[O:13])[CH:4]=1)(=[O:10])=[O:9]

Komponenten

7

Edukt 4

HCID 1048PyrazoleHCID 11430Potassium CarbonateHCID 438061,2-Diaminocyclohexane, trans-HCID 59793691(2-Iodo-5-methanesulfonyl-phenyl)-[4-(4-trifluoromethyl-phenyl)-piperazin-1-yl]-methanone

Produkt 1

HCID 68842692(5-Methanesulfonyl-2-pyrazol-1-yl-phenyl)-[4-(4-trifluoromethyl-phenyl)-piperazin-1-yl]-methanoneAusbeute 21 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

In a tube were added successively (2-Iodo-5-methanesulfonyl-phenyl)-[4-(4-trifluoromethyl-phenyl)-piperazin-1-yl]-methanone (compound CK, 0.1 g, 0.19 mmol), pyrazole (15 mg, 0.223 mmol), potassium carbonate (51 mg, 0.37 mmol), CuI (7 mg, 0.037 mmol), Trans-1,2-diaminocyclohexane (9 ul, 0.07 mmol) and dioxane (0.4 ml). The mixture was heated under argon at 120° C. for 24 hours. The reaction mixture was cooled to room temperature and quenched with water/dichloromethane. The aqueous layer was extracted twice with dichloromethane. The organic layers were combined, dried over Na2SO4, filtered and the solvent was removed in vacuo. The crude oil was chromatographed over silicagel: eluent: heptane/ethylacetate: 0-5% to provide the title compound as a light grey powder (19 mg, 21%), MS (m/e): 479.1 (M+H, 100%)

Aufarbeitung

  1. temperatureThe reaction mixture was cooled to room temperature
  2. customquenched with water/dichloromethane
  3. extractionThe aqueous layer was extracted twice with dichloromethane
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. customthe solvent was removed in vacuo
  7. customThe crude oil was chromatographed over silicagel

Quellen und Nachweise

ORD-Eintrag
ord-ad4e2d4c03f94ba8978a197bf2cb149c
Quelldatensatz
uspto-grants-2008_09
Patentnummer
US07427612B2

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