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Methyl iodide → 3-Bromo-9-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl methoxy)-5,6,6-trimethyl-5,6-dihydro-benzo[b]carbazol-11-one

HRID 2275182
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2275182
[Br:1][C:2]1[CH:14]=[C:13]2[C:5]([C:6]3[C:7](=[O:30])[C:8]4[CH:20]=[C:19]([O:21][CH2:22][C@H:23]5[CH2:27][O:26][C:25]([CH3:29])([CH3:28])[O:24]5)[CH:18]=[CH:17][C:9]=4[C:10]([CH3:16])([CH3:15])[C:11]=3[NH:12]2)=[CH:4][CH:3]=1.[H-].[Na+].[CH3:33]C(N(C)C)=O.CI>O>[Br:1][C:2]1[CH:14]=[C:13]2[C:5]([C:6]3[C:7](=[O:30])[C:8]4[CH:20]=[C:19]([O:21][CH2:22][C@H:23]5[CH2:27][O:26][C:25]([CH3:29])([CH3:28])[O:24]5)[CH:18]=[CH:17][C:9]=4[C:10]([CH3:16])([CH3:15])[C:11]=3[N:12]2[CH3:33])=[CH:4][CH:3]=1
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Komponenten

6

Edukt 4

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 31374DimethylacetamideHCID 668343293-Bromo-9-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl methoxy)-6,6-dimethyl-5,6-dihydro-benzo[b]carbazol-11-one

Produkt 1

HCID 668349303-Bromo-9-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl methoxy)-5,6,6-trimethyl-5,6-dihydro-benzo[b]carbazol-11-one
Ausbeute 91 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

To the mixture of 3-bromo-9-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl methoxy)-6,6-dimethyl-5,6-dihydro-benzo[b]carbazol-11-one (Compound JJ3-1, 33.2 mg, 0.0706 mmol) and sodium hydride (60% in oil, 6.4 mg, 2.3 eq.), DMA (0.55 mL) and methyl iodide (0.015 mL, 3.4 eq.) were added under nitrogen atmosphere at 0° C., and the mixture was stirred at room temperature overnight. The reaction solution was added with water and extracted with ethyl acetate. The organic layer was washed with brine and dried over magnesium sulfate. After filtration and the concentration under reduced pressure, the resulting solid was washed with MTBE to obtain the title compound (white solid, 31.2 mg, 91%).

Aufarbeitung

  1. additionwere added under nitrogen atmosphere at 0° C.
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with brine
  4. dry with materialdried over magnesium sulfate
  5. filtrationAfter filtration
  6. concentrationthe concentration under reduced pressure
  7. washthe resulting solid was washed with MTBE

Quellen und Nachweise

ORD-Eintrag
ord-f3ae9bbc70d041b7a7bf7dfa3b00e109
Quelldatensatz
uspto-grants-2015_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09126931B2

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