Sodium hydride → 1-{[4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]methyl}cyclopropane-1-carbonitrile

HRID 2090412

Reaktionsgleichung

Reaktionsgleichung von HRID 2090412
[CH3:1][C:2]1([CH3:14])[C:6]([CH3:8])([CH3:7])[O:5][B:4]([C:9]2[CH:10]=[N:11][NH:12][CH:13]=2)[O:3]1.CS(O[CH2:20][C:21]1([C:24]#[N:25])[CH2:23][CH2:22]1)(=O)=O.[H-].[Na+]>CN(C)C=O.C(OCC)(=O)C>[CH3:1][C:2]1([CH3:14])[C:6]([CH3:7])([CH3:8])[O:5][B:4]([C:9]2[CH:13]=[N:12][N:11]([CH2:20][C:21]3([C:24]#[N:25])[CH2:23][CH2:22]3)[CH:10]=2)[O:3]1

Komponenten

6

Edukt 3

HCID 24758Sodium hydrideHCID 27740104-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 54220629HCID 54220629, Verbindung

Produkt 1

HCID 684695851-{[4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]methyl}cyclopropane-1-carbonitrileAusbeute 109,8 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
110 °C

Versuchsvorschrift

A mixture of 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (0.1 g, 0.5 mmol), (1-cyanocyclopropyl)methyl methanesulfonate (0.14 g, 0.77 mmol), and sodium hydride (31 mg, 0.77 mmol) in N,N-dimethylformamide (1 mL) was stirred at 110° C. for 2 h. After cooling, it was diluted with ethyl acetate, washed with water and brine, dried over Na2SO4. After filtration the filtrate was concentrated to yield 0.15 g of the crude product which was used in the next step reaction without further purification.

Aufarbeitung

  1. temperatureAfter cooling
  2. washwashed with water and brine
  3. dry with materialdried over Na2SO4
  4. filtrationAfter filtration the filtrate
  5. concentrationwas concentrated

Quellen und Nachweise

ORD-Eintrag
ord-ed15accddbac4efcbc3aea14e828cd46
Quelldatensatz
uspto-grants-2013_05
Patentnummer
US08436008B2

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