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Dimethylformamide → HCID 22248286, Verbindung

HRID 914906
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 914906
Br[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][C:9]([CH:11]1[CH2:16][CH2:15][N:14]([CH2:17][C:18]2[C:23]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[N:22][CH:21]=[CH:20][N:19]=2)[CH2:13][CH2:12]1)=[O:10].[OH-].[Na+].C(OCC)(=O)C.[CH3:37][N:38](C)C=O>[C-]#N.[Zn+2].[C-]#N.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:25]([O:24][C:23]1[C:18]([CH2:17][N:14]2[CH2:15][CH2:16][CH:11]([C:9](=[O:10])[CH2:8][C:3]3[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=3[C:37]#[N:38])[CH2:12][CH2:13]2)=[N:19][CH:20]=[CH:21][N:22]=1)([CH3:28])([CH3:27])[CH3:26]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 6228DimethylformamideHCID 8857Ethyl AcetateHCID 14798Sodium HydroxideHCID 22248057HCID 22248057, Verbindung

Produkt 1

HCID 22248286HCID 22248286, VerbindungAusbeute 34 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 11186
Zinc cyanide (Zn(CN)2)
Katalysator
HCID 178418397HCID 178418397, VerbindungKatalysator

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

After dissolving 298 mg of 2-(2-bromophenyl)-1-[1-(3-tert-butoxy-2-pyrazinylmethyl)piperidin-4-yl]ethanone in 2 ml of N,N-dimethylformamide, 235 mg of zinc cyanide and 77 mg of tetrakis(triphenylphosphine)palladium(0) were added and the mixture was stirred overnight at 100° C. A 1N sodium hydroxide solution was added to the reaction mixture and extraction was performed with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (solvent: n-hexane/ethyl acetate) to obtain the title compound (90 mg, 34% yield).

Aufarbeitung

  1. additionwere added
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. distillationthe solvent was distilled off under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (solvent: n-hexane/ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-771e1418c6f44660954ba53aa64fe6c4
Quelldatensatz
uspto-grants-2007_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07265108B2

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