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2,4,6-Trimethylpyridine → 1-Cyclohexyl-2-(4,6-dimethylpyridin-2-ylmethyl)-4-(5-fluoro-2-methoxyphenyl)-4-methylpentan-2-ol

HRID 2080593
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2080593
[N:1]1[C:6]([CH3:7])=[CH:5][C:4]([CH3:8])=[CH:3][C:2]=1[CH3:9].C([Li])(C)(C)C.[CH:15]1([CH2:21][C:22](=[O:36])[CH2:23][C:24]([C:27]2[CH:32]=[C:31]([F:33])[CH:30]=[CH:29][C:28]=2[O:34][CH3:35])([CH3:26])[CH3:25])[CH2:20][CH2:19][CH2:18][CH2:17][CH2:16]1>C1COCC1>[CH:15]1([CH2:21][C:22]([CH2:9][C:2]2[CH:3]=[C:4]([CH3:8])[CH:5]=[C:6]([CH3:7])[N:1]=2)([OH:36])[CH2:23][C:24]([C:27]2[CH:32]=[C:31]([F:33])[CH:30]=[CH:29][C:28]=2[O:34][CH3:35])([CH3:26])[CH3:25])[CH2:16][CH2:17][CH2:18][CH2:19][CH2:20]1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 79532,4,6-TrimethylpyridineHCID 223986261-Cyclohexyl-4-(5-fluoro-2-methoxyphenyl)-4-methylpentan-2-oneHCID 178418306HCID 178418306, Verbindung

Produkt 1

HCID 223986011-Cyclohexyl-2-(4,6-dimethylpyridin-2-ylmethyl)-4-(5-fluoro-2-methoxyphenyl)-4-methylpentan-2-olAusbeute 55,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028
Tetrahydrofuran
Lösungsmittel
2×

Versuchsvorschrift

To a solution of collidine (0.113 g) in THF (1 mL) cooled to −70° C. was added dropwise over 3 minutes tert-butyl lithium (1.7 M in pentane, 0.55 mL). The mixture was stirred for 5 minutes and then 1-cyclohexyl-4-(5-fluoro-2-methoxyphenyl)-4-methylpentan-2-one (Example 15) (0.095 g) in THF (0.5 mL) was added dropwise. After 10 minutes at −70° C., the reaction was quenched by addition of EtOH (0.2 mL) and warmed to room temperature. The mixture was diluted with EtOAc, washed with water, dried over sodium sulfate, filtered, and evaporated. The residue was fractionated by preparative layer chromatography (developer: methylene chloride-EtOAc (99:1)) followed by preparative layer chromatography (developer: hexanes-methylene chloride-EtOH (1:1:0.01)) to give the title compound as an oil (73 mg).

Aufarbeitung

  1. waitAfter 10 minutes at −70° C.
  2. customthe reaction was quenched by addition of EtOH (0.2 mL)
  3. additionThe mixture was diluted with EtOAc
  4. washwashed with water
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-c9d5100cb61d443b86b00bde820babe8
Quelldatensatz
uspto-grants-2011_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07932392B2

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