Iodoethane → methyl 2-(4-chlorophenyl)-2-(4-formyl-1H-indol-1-yl)butanoate
Reaktionsgleichung
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([N:13]2[C:21]3[C:16](=[C:17]([CH:22]=[O:23])[CH:18]=[CH:19][CH:20]=3)[CH:15]=[CH:14]2)[C:9]([O:11][CH3:12])=[O:10])=[CH:4][CH:3]=1.[Li+].C[Si]([N-][Si](C)(C)C)(C)C.I[CH2:35][CH3:36]>C1COCC1.CN(P(N(C)C)(N(C)C)=O)C.CCOC(C)=O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]([N:13]2[C:21]3[C:16](=[C:17]([CH:22]=[O:23])[CH:18]=[CH:19][CH:20]=3)[CH:15]=[CH:14]2)([CH2:35][CH3:36])[C:9]([O:11][CH3:12])=[O:10])=[CH:6][CH:7]=1Komponenten
7
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 3
Reaktionsbedingungen
- Temperatur
- 0 °C
Versuchsvorschrift
To a solution of methyl 2-(4-chlorophenyl)-2-(4-formyl-1H-indol-1-yl)acetate (2.34 g, 7.17 mmol) in THF (60 mL) and HMPA (15 mL) was added LiHMDS (1 M in THF, 11.0 mL, 11 mmol) dropwise at 0° C. The mixture was stirred at 0° C. for 30 min before adding iodoethane (1.23 g, 7.88 mmol). After stirring for another 30 min at 0° C., the mixture was diluted with EtOAc (120 mL) and then quenched with water (20 mL). The organic layer was separated and washed with brine (20 mL), dried over Na2SO4, filtered and the solvent was removed in vacuo. The residue was purified via column chromatography (0-15% EtOAc/hexanes) to provide the title compound.
Aufarbeitung
- stirringAfter stirring for another 30 min at 0° C.
- customquenched with water (20 mL)
- customThe organic layer was separated
- washwashed with brine (20 mL)
- dry with materialdried over Na2SO4
- filtrationfiltered
- customthe solvent was removed in vacuo
- customThe residue was purified via column chromatography (0-15% EtOAc/hexanes)
Quellen und Nachweise
- ORD-Eintrag
- ord-509438ede45e4a1db05f0be18bd4973a
- Quelldatensatz
- uspto-grants-2015_01
- Patentnummer
- US08933113B2
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