Triethylamine → N-(3-Cyano-4-neopentyloxyphenyl)-1-(4-fluorophenyl)-5-methylpyrazole-3-carboxamide

HRID 1744570Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1744570
[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:12]([CH3:13])=[CH:11][C:10]([C:14]([OH:16])=O)=[N:9]2)=[CH:4][CH:3]=1.[NH2:17][C:18]1[CH:19]=[CH:20][C:21]([O:26][CH2:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[C:22]([CH:25]=1)[C:23]#[N:24].C(N(CC)CC)C.P(C#N)(OCC)(OCC)=O>O.CN(C)C=O>[C:23]([C:22]1[CH:25]=[C:18]([NH:17][C:14]([C:10]2[CH:11]=[C:12]([CH3:13])[N:8]([C:5]3[CH:4]=[CH:3][C:2]([F:1])=[CH:7][CH:6]=3)[N:9]=2)=[O:16])[CH:19]=[CH:20][C:21]=1[O:26][CH2:27][C:28]([CH3:30])([CH3:29])[CH3:31])#[N:24]

Komponenten

7

Edukt 4

HCID 8471TriethylamineHCID 76257Diethyl cyanophosphonateHCID 178227345-Amino-2-neopentyloxybenzonitrileHCID 222279451-(4-fluorophenyl)-5-methyl-1H-pyrazole-3-carboxylic acid

Produkt 1

HCID 22227973N-(3-Cyano-4-neopentyloxyphenyl)-1-(4-fluorophenyl)-5-methylpyrazole-3-carboxamideAusbeute 49 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

1-(4-Fluorophenyl)-5-methylpyrazole-3-carboxylic acid (2.1 g), 5-amino-2-neopentyloxybenzonitrile (2.0 g), triethylamine (2.9 g) and diethyl cyanophosphate (2.3 g) were added to dimethylformamide (25 ml) and the mixture was stirred at room temperature for 1 h. The reaction mixture was added into water and extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, after which the solvent was evaporated under reduced pressure. Methanol was added to the residue to allow crystallization. The crystals were recrystallized from hydrous methanol to give the title compound (1.9 g), melting point: 146–147° C.

Aufarbeitung

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customafter which the solvent was evaporated under reduced pressure
  5. additionMethanol was added to the residue
  6. customcrystallization
  7. customThe crystals were recrystallized from hydrous methanol

Quellen und Nachweise

ORD-Eintrag
ord-c41a9799799842e39c78a06d82ec2bee
Quelldatensatz
uspto-grants-2006_03
Patentnummer
US07015218B1

Notizen zur Reaktion

Wird geladen…