Tetrabutylammonium Fluoride → Methyl 2-((S)-6-((R)-7-fluoro-4-(4-hydroxy-2,6-dimethylphenyl)-2,3-dihydro-1H-inden-1-yloxy)-2,3-dihydrobenzofuran-3-yl)acetate

HRID 237509Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 237509
[Si]([O:8][C:9]1[CH:14]=[C:13]([CH3:15])[C:12]([C:16]2[CH:24]=[CH:23][C:22]([F:25])=[C:21]3[C:17]=2[CH2:18][CH2:19][C@H:20]3[O:26][C:27]2[CH:40]=[CH:39][C:30]3[C@H:31]([CH2:34][C:35]([O:37][CH3:38])=[O:36])[CH2:32][O:33][C:29]=3[CH:28]=2)=[C:11]([CH3:41])[CH:10]=1)(C(C)(C)C)(C)C.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>O1CCCC1>[F:25][C:22]1[CH:23]=[CH:24][C:16]([C:12]2[C:13]([CH3:15])=[CH:14][C:9]([OH:8])=[CH:10][C:11]=2[CH3:41])=[C:17]2[C:21]=1[C@H:20]([O:26][C:27]1[CH:40]=[CH:39][C:30]3[C@H:31]([CH2:34][C:35]([O:37][CH3:38])=[O:36])[CH2:32][O:33][C:29]=3[CH:28]=1)[CH2:19][CH2:18]2

Komponenten

4

Edukt 2

HCID 2724141Tetrabutylammonium FluorideHCID 86697112Methyl 2-((S)-6-((R)-4-(4-(tert-butyldimethylsilyloxy)-2,6-dimethylphenyl)-7-fluoro-2,3-dihydro-1H-inden-1-yloxy)-2,3-dihydrobenzofuran-3-yl)acetate

Produkt 1

HCID 86697113Methyl 2-((S)-6-((R)-7-fluoro-4-(4-hydroxy-2,6-dimethylphenyl)-2,3-dihydro-1H-inden-1-yloxy)-2,3-dihydrobenzofuran-3-yl)acetate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel2×

Versuchsvorschrift

Methyl 2-((S)-6-((R)-4-(4-(tert-butyldimethylsilyloxy)-2,6-dimethylphenyl)-7-fluoro-2,3-dihydro-1H-inden-1-yloxy)-2,3-dihydrobenzofuran-3-yl)acetate (440 mg) and tetrabutylammonium fluoride in tetrahydrofuran (1 M; 3.1 mL) are stirred in tetrahydrofuran (5 mL) at ambient temperature overnight. The reaction mixture is partitioned between diethylether and saturated aqueous NH4Cl solution. The organic phase is dried (MgSO4) and concentrated. The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 90:10→60:40) to give the title compound. Yield: 280 mg.

Aufarbeitung

  1. customThe reaction mixture is partitioned between diethylether and saturated aqueous NH4Cl solution
  2. dry with materialThe organic phase is dried (MgSO4)
  3. concentrationconcentrated
  4. customThe residue is chromatographed on silica gel (cyclohexane/ethyl acetate 90:10→60:40)

Quellen und Nachweise

ORD-Eintrag
ord-ccf48fa3930e4c83ad5e2c6e3e5823f0
Quelldatensatz
uspto-grants-2014_02
Patentnummer
US08642585B2

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