Cesium carbonate → 2-{4-[2-Cyclopropyl-6-(4-trifluoromethyl-phenyl)-pyridin-3-ylmethoxy]-2-methyl-phenoxy}-2-methyl-propionic acid ethyl ester

HRID 1242348Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1242348
[CH2:1]([O:3][C:4](=[O:17])[C:5]([O:8][C:9]1[CH:14]=[CH:13][C:12]([OH:15])=[CH:11][C:10]=1[CH3:16])([CH3:7])[CH3:6])[CH3:2].Cl[CH2:19][C:20]1[C:21]([CH:36]2[CH2:38][CH2:37]2)=[N:22][C:23]([C:26]2[CH:31]=[CH:30][C:29]([C:32]([F:35])([F:34])[F:33])=[CH:28][CH:27]=2)=[CH:24][CH:25]=1.C([O-])([O-])=O.[Cs+].[Cs+]>C(#N)C>[CH2:1]([O:3][C:4](=[O:17])[C:5]([O:8][C:9]1[CH:14]=[CH:13][C:12]([O:15][CH2:19][C:20]2[C:21]([CH:36]3[CH2:38][CH2:37]3)=[N:22][C:23]([C:26]3[CH:27]=[CH:28][C:29]([C:32]([F:34])([F:35])[F:33])=[CH:30][CH:31]=3)=[CH:24][CH:25]=2)=[CH:11][C:10]=1[CH3:16])([CH3:6])[CH3:7])[CH3:2]

Komponenten

5

Edukt 3

HCID 10796Cesium carbonateHCID 16756990Ethyl 2-(4-hydroxy-2-methylphenoxy)-2-methylpropanoateHCID 219359313-Chloromethyl-2-cyclopropyl-6-(4-trifluoromethyl-phenyl)-pyridine

Produkt 1

HCID 670724182-{4-[2-Cyclopropyl-6-(4-trifluoromethyl-phenyl)-pyridin-3-ylmethoxy]-2-methyl-phenoxy}-2-methyl-propionic acid ethyl ester

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

To 0.102 g (0.428 mmol) of 2-(4-hydroxy-2-methyl-phenoxy)-2-methyl-propionic acid ethyl ester (described in WO 02/092590) and 0.134 g (0.429 mmol) of the above prepared 3-chloromethyl-2-cyclopropyl-6-(4-trifluoromethyl-phenyl)-pyridine, dissolved in 2.5 ml of abs. acetonitrile, was added 0.168 g of Cs2CO3 (0.516 mmol). The reaction was stirred over night at ambient temperature. Pouring onto crashed ice/NH4Cl-solution, twofold extraction with AcOEt, washing with water and brine, drying over magnesium sulfate, and evaporation of the solvents, followed by flash chromatography (SiO2, hexane/AcOEt=88/12) yielded 0.221 g of pure title compound as colorless oil.

Aufarbeitung

  1. dissolutiondissolved in 2.5 ml of abs
  2. additionPouring
  3. extractionextraction with AcOEt
  4. washwashing with water and brine
  5. dry with materialdrying over magnesium sulfate, and evaporation of the solvents

Quellen und Nachweise

ORD-Eintrag
ord-72616b81aca14ec790ef0ecbbaf54d7d
Quelldatensatz
uspto-grants-2006_10
Patentnummer
US07115611B2

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