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Water → 4-chloro-N-[2-(2-chloro-5-nitro-benzoyl)-5-methyl-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamide

HRID 419170
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 419170
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([N:11]([C:15]2[C:16]([C:22](=[O:33])[C:23]3[CH:28]=[C:27]([N+:29]([O-:31])=[O:30])[CH:26]=[CH:25][C:24]=3[Cl:32])=[N:17][CH:18]=[C:19]([CH3:21])[CH:20]=2)COC)(=[O:10])=[O:9])=[CH:4][C:3]=1[C:34]([F:37])([F:36])[F:35].O>Cl.O1CCOCC1>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][C:15]2[C:16]([C:22](=[O:33])[C:23]3[CH:28]=[C:27]([N+:29]([O-:31])=[O:30])[CH:26]=[CH:25][C:24]=3[Cl:32])=[N:17][CH:18]=[C:19]([CH3:21])[CH:20]=2)(=[O:9])=[O:10])=[CH:4][C:3]=1[C:34]([F:37])([F:35])[F:36]
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Komponenten

5

Edukt 2

HCID 962WaterHCID 579423084-chloro-N-[2-(2-chloro-5-nitro-benzoyl)-5-methyl-pyridin-3-yl]-N-methoxymethyl-3-trifluoromethyl-benzenesulfonamide

Produkt 1

HCID 579424904-chloro-N-[2-(2-chloro-5-nitro-benzoyl)-5-methyl-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamideAusbeute 64 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 313Hydrochloric AcidLösungsmittel
HCID 31275
1,4-Dioxane
Lösungsmittel

Versuchsvorschrift

A mixture of 4-chloro-N-[2-(2-chloro-5-nitro-benzoyl)-5-methyl-pyridin-3-yl]-N-methoxymethyl-3-trifluoromethyl-benzenesulfonamide (230 mg, 0.398 mmol) in 4 M HCl in dioxane (4 mL) and water (1 mL) was 50° C. for overnight. Reaction mixture was cooled to room temperature, evaporated to dryness and treated slowly with saturated aqueous NaHCO3 solution until pH 7-8. The mixture was extracted with EtOAc (2×25 mL), dried (anhydrous Na2SO4) and concentrated. The obtained residue was purified by flash chromatography (SiO2, 50% EtOAc-hexanes) to afford 4-chloro-N-[2-(2-chloro-5-nitro-benzoyl)-5-methyl-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamide (136 mg) in 64% yield. ESMS m/z (relative intensity): 533.9 (M+H)+ (90), 555.9 (M+Na)+ (100).

Aufarbeitung

  1. customReaction mixture
  2. customevaporated to dryness
  3. additiontreated slowly with saturated aqueous NaHCO3 solution until pH 7-8
  4. extractionThe mixture was extracted with EtOAc (2×25 mL)
  5. dry with materialdried (anhydrous Na2SO4)
  6. concentrationconcentrated
  7. customThe obtained residue was purified by flash chromatography (SiO2, 50% EtOAc-hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-2009416324754345a9f2f6dde1fe43ef
Quelldatensatz
uspto-grants-2012_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08093247B2

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