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2-(4-Fluorophenyl)-3-(methylcarbamoyl)-6-nitrobenzofuran-5-yl trifluoromethanesulfonate → 6-Amino-2-(4-fluorophenyl)-3-(methylcarbamoyl)benzofuran-5-yl trifluoromethanesulfonate

HRID 555030
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 555030
[F:1][C:2]([F:31])([F:30])[S:3]([O:6][C:7]1[C:8]([N+:27]([O-])=O)=[CH:9][C:10]2[O:14][C:13]([C:15]3[CH:20]=[CH:19][C:18]([F:21])=[CH:17][CH:16]=3)=[C:12]([C:22](=[O:25])[NH:23][CH3:24])[C:11]=2[CH:26]=1)(=[O:5])=[O:4]>CCO.CC(O)=O.CCOC(C)=O.[Fe]>[F:31][C:2]([F:1])([F:30])[S:3]([O:6][C:7]1[C:8]([NH2:27])=[CH:9][C:10]2[O:14][C:13]([C:15]3[CH:16]=[CH:17][C:18]([F:21])=[CH:19][CH:20]=3)=[C:12]([C:22](=[O:25])[NH:23][CH3:24])[C:11]=2[CH:26]=1)(=[O:5])=[O:4]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 1

HCID 592753912-(4-Fluorophenyl)-3-(methylcarbamoyl)-6-nitrobenzofuran-5-yl trifluoromethanesulfonate

Produkt 1

HCID 592755966-Amino-2-(4-fluorophenyl)-3-(methylcarbamoyl)benzofuran-5-yl trifluoromethanesulfonateAusbeute 84 %

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 23925IronKatalysatorHCID 176Acetic AcidLösungsmittel
HCID 702
Ethanol
Lösungsmittel
HCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

Iron (211 mg, 3.79 mmol) was added to a stirring solution of 2-(4-fluorophenyl)-3-(methylcarbamoyl)-6-nitrobenzofuran-5-yl trifluoromethanesulfonate (350 mg, 0.757 mmol) in EtOH (8.4 mL) and AcOH (8.4 mL) at rt and then was heated to 100° C. for 10 min. The mixture was diluted with EtOAc and washed with 1M HCl, and sat NaCl followed by 1M NaOH and brine. The organic phase was dried over Na2SO4, filtered and concentrated to give a white solid which was 1:1 starting material:product. It was resubjected to the reaction conditions for 15 min and re-worked up to give the titled compound (275 mg, 84%). LC-MS retention time: 1.47 min; m/z (MH+): 433. LC data was recorded on a Shimadzu LC-10AS liquid chromatograph equipped with a Waters XBridge 5u C18 4.6×50 mm column using a SPD-10AV UV-Vis detector at a detector wave length of 220 nM. The elution conditions employed a flow rate of 5 ml/min, a gradient of 100% solvent A/0% solvent B to 0% solvent A/100% solvent B, a gradient time of 2 min, a hold time of 1 min, and an analysis time of 3 min where solvent A was 5% acetonitrile/95% H2O/10 mM ammonium acetate and solvent B was 5% H2O/95% acetonitrile/10 mM ammonium acetate. MS data was determined using a MICROMASS® Platform for LC in electrospray mode.

Aufarbeitung

  1. washwashed with 1M HCl
  2. dry with materialThe organic phase was dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customto give a white solid which
  6. customIt was resubjected to the reaction conditions for 15 min

Quellen und Nachweise

ORD-Eintrag
ord-aa4933985c0d4a899e52af4ba916bf30
Quelldatensatz
uspto-grants-2011_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08048887B2

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