4-Fluoroaniline → HCID 12985694, Verbindung

HRID 2119615

Reaktionsgleichung

Reaktionsgleichung von HRID 2119615
I[C:2]1[CH:3]=[N:4][N:5]([CH3:10])[C:6]=1[C:7](O)=[O:8].[F:11][C:12]1[CH:18]=[CH:17][C:15]([NH2:16])=[CH:14][CH:13]=1.C(=O)([O-])[O-].[Na+].[Na+].[OH-].[Na+]>[Cu].C(OCC)C>[F:11][C:12]1[CH:18]=[CH:17][C:15]2[NH:16][C:2]3[CH:3]=[N:4][N:5]([CH3:10])[C:6]=3[C:7](=[O:8])[C:14]=2[CH:13]=1

Komponenten

7

Edukt 4

HCID 97314-FluoroanilineHCID 10340Sodium CarbonateHCID 14798Sodium HydroxideHCID 6736874-Iodo-1-methyl-1H-pyrazole-5-carboxylic acid

Produkt 1

HCID 12985694HCID 12985694, VerbindungAusbeute 61 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23978CopperKatalysatorHCID 3283Diethyl EtherLösungsmittel

Versuchsvorschrift

A mixture of 4-iodo-1-methyl-1H-pyrazole-5-carboxylic acid ((Manaev, Yu. A. et al., J. Gen. Chem. USSR (Engl. Transl.), 1982, 52 (11), 2291), 500 mg, 1.98 mmol), 4-fluoroaniline (0.94 ml, 9.90 mmol), copper powder (200 mg) and 5% aqueous sodium carbonate (10 ml) was stirred for 16 h at 100° C. After cooling to room temperature, 2N aqueous sodium hydroxide (100 ml) and diethyl ether (50 ml) were added to the mixture. The mixture was filtered through a pad of Celite. The water layer was separated, washed with diethyl ether (50 ml) and acidified with concentrated hydrochloric acid. The formed precipitate was collected by filtration and dried to give 282 mg (61%) of the title compound as a white solid.

Aufarbeitung

  1. filtrationThe mixture was filtered through a pad of Celite
  2. customThe water layer was separated
  3. washwashed with diethyl ether (50 ml)
  4. filtrationThe formed precipitate was collected by filtration
  5. customdried

Quellen und Nachweise

ORD-Eintrag
ord-61298bab12dd4f30a5a7fed1e8a287bf
Quelldatensatz
uspto-grants-2004_02
Patentnummer
US06686373B2

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