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Phenylacetaldehyde → 1-[3-(4-fluorophenyl)-1-(tetrahydropyran-2-yl)-1H-indazol-5-yl]-2-phenylethan-1-ol

HRID 1349643
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1349643
Br[C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]([CH:11]1[CH2:16][CH2:15][CH2:14][CH2:13][O:12]1)[N:6]=[C:5]2[C:17]1[CH:22]=[CH:21][C:20]([F:23])=[CH:19][CH:18]=1.C([Li])CCC.CCCCCC.[C:35]1([CH2:41][CH:42]=[O:43])[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1>O1CCCC1>[F:23][C:20]1[CH:21]=[CH:22][C:17]([C:5]2[C:4]3[C:8](=[CH:9][CH:10]=[C:2]([CH:42]([OH:43])[CH2:41][C:35]4[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=4)[CH:3]=3)[N:7]([CH:11]3[CH2:16][CH2:15][CH2:14][CH2:13][O:12]3)[N:6]=2)=[CH:18][CH:19]=1
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Komponenten

6

Edukt 4

HCID 998PhenylacetaldehydeHCID 8058HexaneHCID 224796801h-Indazole,5-bromo-3-(4-fluorophenyl)-1-(tetrahydro-2h-pyran-2-yl)-HCID 178418339Butyllithium

Produkt 1

HCID 224803491-[3-(4-fluorophenyl)-1-(tetrahydropyran-2-yl)-1H-indazol-5-yl]-2-phenylethan-1-olAusbeute 59,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of 5-bromo-3-(4-fluorophenyl)-1-(tetrahydropyran-2-yl)-1H-indazole (0.50 g, 1.0 mmol) in dried tetrahydrofuran (15 mL) under nitrogen at −78° C. was added dropwise a 1.6 M solution of butyl lithium in hexane (1.1 mL, 1.7 mmol). After stirring for 20 minutes, to the reaction mixture was added phenylacetaldehyde (0.228 g, 1.9 mmol). The reaction mixture was stirred additional 1 hour at −78° C. and the temperature was gradually raised to room temperature. It was quenched with water and extracted with dichloromethane. The extracts were dried over magnesium sulfate, filtered, and concentrated. The residue was then purified by chromatography (SiO2, 15–30% ethyl acetate/hexane) to provide the title compound (0.246 g, 44% yield): 1H NMR (CDCl3) δ 7.86 (m, 2H), 7.80 (d, 1H), 7.09–7.47 (m, 9H), 6.98 (dd, 1H), 5.70 (dd, 1H), 5.07 (t, 1H), 4.08 (m, 1H), 3.65 (m, 1H), 3.06 (d, 1H), 2.67 (m, 2H), 2.11 (m, 2H), 1.75 (m, 3H); ES-MS (m/z) 417 [M+1]+.

Aufarbeitung

  1. stirringThe reaction mixture was stirred additional 1 hour at −78° C.
  2. customIt was quenched with water
  3. extractionextracted with dichloromethane
  4. dry with materialThe extracts were dried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was then purified by chromatography (SiO2, 15–30% ethyl acetate/hexane)

Quellen und Nachweise

ORD-Eintrag
ord-6fd7cad27b3b4ecab91afe67c99bfbff
Quelldatensatz
uspto-grants-2007_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07211594B2

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