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1,2-Dimethoxyethane → 1-(sec-butyl)-4-methoxy-5-(1-methyl-1H-pyrazol-3-yl)-2-oxo-1,2-dihydropyridine-3-carbonitrile

HRID 1526378
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1526378
Br[C:2]1[C:3]([O:15][CH3:16])=[C:4]([C:13]#[N:14])[C:5](=[O:12])[N:6]([CH:8]([CH2:10][CH3:11])[CH3:9])[CH:7]=1.[CH3:17][N:18]1[CH:22]=[CH:21][C:20](B2OC(C)(C)C(C)(C)O2)=[N:19]1.C(=O)([O-])[O-].[Na+].[Na+].COCCOC>O.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>[CH:8]([N:6]1[CH:7]=[C:2]([C:20]2[CH:21]=[CH:22][N:18]([CH3:17])[N:19]=2)[C:3]([O:15][CH3:16])=[C:4]([C:13]#[N:14])[C:5]1=[O:12])([CH2:10][CH3:11])[CH3:9]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 27600771-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 1177706575-Bromo-1-(sec-butyl)-4-methoxy-2-oxo-1,2-dihydropyridine-3-carbonitrile

Produkt 1

HCID 1177703841-(sec-butyl)-4-methoxy-5-(1-methyl-1H-pyrazol-3-yl)-2-oxo-1,2-dihydropyridine-3-carbonitrile
Ausbeute 68,9 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

To a mixture of 5-bromo-1-(sec-butyl)-4-methoxy-2-oxo-1,2-dihydropyridine-3-carbonitrile obtained in Step B (130 mg), 1-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (114 mg), 2M aqueous sodium carbonate solution (1.37 mL) and 1,2-dimethoxyethane (2.5 mL) was added tetrakis(triphenylphosphine)palladium(0) (52.7 mg), and the mixture was stirred with microwave irradiation at 100° C. for 1 hr. The reaction mixture was diluted with water, and the mixture was extracted twice with ethyl acetate. The extracts were combined, washed with saturated brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (basic silica gel, ethyl acetate/hexane) to give the title compound (90 mg).

Aufarbeitung

  1. extractionthe mixture was extracted twice with ethyl acetate
  2. washwashed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was evaporated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (basic silica gel, ethyl acetate/hexane)

Quellen und Nachweise

ORD-Eintrag
ord-6ba654f39d394b85ab7f661147995c63
Quelldatensatz
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09085578B2

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