Sodium Hypochlorite → HCID 178506304, Verbindung

HRID 1709700Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1709700
[Cl:1][C:2]1[NH:6][N:5]=[C:4]([C:7]([F:10])([F:9])[F:8])[CH:3]=1.[O-][Cl:12].[Na+]>CO>[Cl:12][C:3]1[C:4]([C:7]([F:10])([F:9])[F:8])=[N:5][NH:6][C:2]=1[Cl:1]

Komponenten

4

Edukt 2

HCID 23665760Sodium HypochloriteHCID 1785061975-chloro-3-(trifluoromethyl)-1H-pyrazole

Produkt 1

HCID 178506304HCID 178506304, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

A solution of 5-chloro-3-trifluoromethylpyrazole (190.0 g, 1.11 mol) in 400 ml of methanol is treated with liquid bleach (5.25% NaOCl) for 3 hr. The reaction mixture is then extracted with ether, the combined ether extracts are acidified with HCl (300 ml), washed with brine, dried and concentrated to give 4,5-dichloro-3-trifluoromethylpyrazole, a light yellow solid, m.p. 58°-60° .

Aufarbeitung

  1. extractionThe reaction mixture is then extracted with ether
  2. washwashed with brine
  3. customdried
  4. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-955e6731d4834cf980e08587bfdc5f65
Quelldatensatz
uspto-grants-1990_08
Patentnummer
US04950678

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