Sodium Acetate → N-{2-[1-(4-fluorophenoxyimino)ethyl]-5-trifluoromethylphenyl}trifluoromethanesulfonamide

HRID 602624Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 602624
[C:1]([C:4]1[CH:9]=[CH:8][C:7]([C:10]([F:13])([F:12])[F:11])=[CH:6][C:5]=1[NH:14][S:15]([C:18]([F:21])([F:20])[F:19])(=[O:17])=[O:16])(=O)[CH3:2].Cl.[F:23][C:24]1[CH:29]=[CH:28][C:27]([O:30][NH2:31])=[CH:26][CH:25]=1.CC([O-])=O.[Na+]>CCO>[F:23][C:24]1[CH:29]=[CH:28][C:27]([O:30][N:31]=[C:1]([C:4]2[CH:9]=[CH:8][C:7]([C:10]([F:11])([F:13])[F:12])=[CH:6][C:5]=2[NH:14][S:15]([C:18]([F:21])([F:19])[F:20])(=[O:17])=[O:16])[CH3:2])=[CH:26][CH:25]=1

Komponenten

5

Edukt 3

HCID 517045Sodium AcetateHCID 22120336O-(4-fluorophenyl)hydroxylamine hydrochlorideHCID 86604010N-(2-acetyl-5-trifluoromethylphenyl)trifluoromethanesulfonamide

Produkt 1

HCID 72491699N-{2-[1-(4-fluorophenoxyimino)ethyl]-5-trifluoromethylphenyl}trifluoromethanesulfonamideAusbeute 81 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

A solution of N-(2-acetyl-5-trifluoromethylphenyl)trifluoromethanesulfonamide 35 (280 mg, 0.84 mmol), O-(4-fluorophenyl)hydroxylamine hydrochloride (150 mg, 0.92 mmol) and anhydrous NaOAc (75 mg, 0.92 mmol) in EtOH (15 mL) was stirred for 24 hours at RT. The reaction mixture was concentrated under vacuum, the residue purified by column chromatography (eluting with CH2Cl2/PE; 1:1 to 4:1) and the solvent removed under reduced pressure. Recrystallization from CH2Cl2/PE afforded N-{2-[1-(4-fluorophenoxyimino)ethyl]-5-trifluoromethylphenyl}trifluoromethanesulfonamide 200 (300 my, 81%), as colorless crystals. M.p. 95-96° C. 1H n.m.r. (200 MHz, CDCl3) δ 11.48, br s, 1H, 8.01, s, 1H, 7.76, d, J=8.4 Hz, 1H, 7.55, m, 1H, 7.19-7.04, m, 4H, 2.60, s, 3H.

Aufarbeitung

  1. concentrationThe reaction mixture was concentrated under vacuum
  2. customthe residue purified by column chromatography (eluting with CH2Cl2/PE; 1:1 to 4:1)
  3. customthe solvent removed under reduced pressure
  4. customRecrystallization from CH2Cl2/PE

Quellen und Nachweise

ORD-Eintrag
ord-f1e356611dff4e69b6c724dc7794efa9
Quelldatensatz
uspto-grants-2011_03
Patentnummer
US07906538B2

Notizen zur Reaktion

Wird geladen…