Methanamine, N-methoxy-, hydrochloride (1:1) → N-methoxy-N,1-dimethyl-1H-imidazole-2-carboxamide

HRID 1988636

Reaktionsgleichung

Reaktionsgleichung von HRID 1988636
CN([C:4]([O:8][N:9]1N=NC2C=CC=N[C:10]1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[CH3:25][N:26]1[CH:30]=[CH:29][N:28]=[C:27]1[C:31]([OH:33])=O.Cl.CNOC.C(N(C(C)C)CC)(C)C>CN(C=O)C>[CH3:10][N:9]([O:8][CH3:4])[C:31]([C:27]1[N:26]([CH3:25])[CH:30]=[CH:29][N:28]=1)=[O:33]

Komponenten

6

Edukt 4

HCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 81531DiisopropylethylamineHCID 5576781-methyl-1H-imidazole-2-carboxylic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)

Produkt 1

HCID 57762806N-methoxy-N,1-dimethyl-1H-imidazole-2-carboxamideAusbeute 212,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

HATU (O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate) (1.75 g; 4.60 mmol) was added in on portion to a stirring solution of 1-methyl-1H-imidazole-2-carboxylic acid (509 mg; 4.04 mmol), N,O-dimethylhydroxylamine hydrochloride (391 mg; 4.01 mmol), and diisopropylethylamine (2.0 mL; 11.9 mmol) in anhydrous DMF (14 mL). The mixture was stirred at room temperature for 17 hours and partitioned between ethyl acetate (100 mL) and water (100 mL). The organic phase was dried (MgSO4) and concentrated in vacuo, giving a colourless oil (1.45 g). This was purified by column chromatography, giving the title compound as a colourless oil (494 mg; 73%).

Aufarbeitung

  1. custompartitioned between ethyl acetate (100 mL) and water (100 mL)
  2. dry with materialThe organic phase was dried (MgSO4)
  3. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-78e47bdf5a66474fb8f1a6dbc38b81c2
Quelldatensatz
uspto-grants-2010_01
Patentnummer
US07642256B2

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