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Water → 2-[2,4-Difluoro-3-[[3-fluoro-5-(3-fluorophenyl)phenyl]methylamino]phenoxy]acetic acid

HRID 1771662
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1771662
[F:1][C:2]1[C:14]([NH:15][CH2:16][C:17]2[CH:22]=[C:21]([C:23]3[CH:28]=[CH:27][CH:26]=[C:25]([F:29])[CH:24]=3)[CH:20]=[C:19]([F:30])[CH:18]=2)=[C:13]([F:31])[CH:12]=[CH:11][C:3]=1[O:4][CH2:5][C:6]([O:8]CC)=[O:7].[Li+].[OH-].O>C1COCC1>[F:1][C:2]1[C:14]([NH:15][CH2:16][C:17]2[CH:22]=[C:21]([C:23]3[CH:28]=[CH:27][CH:26]=[C:25]([F:29])[CH:24]=3)[CH:20]=[C:19]([F:30])[CH:18]=2)=[C:13]([F:31])[CH:12]=[CH:11][C:3]=1[O:4][CH2:5][C:6]([OH:8])=[O:7]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 962WaterHCID 3939Lithium HydroxideHCID 89443870Ethyl 2-[2,4-difluoro-3-[[3-fluoro-5-(3-fluorophenyl)phenyl]methylamino]phenoxy]acetate

Produkt 1

HCID 894440782-[2,4-Difluoro-3-[[3-fluoro-5-(3-fluorophenyl)phenyl]methylamino]phenoxy]acetic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028Tetrahydrofuran
Lösungsmittel

Versuchsvorschrift

To a stirred solution of Ethyl 2-[2,4-difluoro-3-[[3-fluoro-5-(3-fluorophenyl)phenyl]methylamino]phenoxy]acetate (385 mg, 0.89 mmol, 1.0 eq) in THF (4 mL) was added an aqueous solution of LiOH (2M aqueous solution, 3 mL, 6 mmol, 6.7 eq). The reaction was stirred at room temperature for 1 h. Water was added and the THF removed in vacuo. The aqueous residue was extracted with EtOAc and the combined organic extracts were washed with water and brine, dried (Na2SO4), filtered and evaporated in vacuo. The crude material obtained was recrystallised from DCM/petroleum ether, collected by filtration and dried in vacuo to give (I(n)) (60 mg, 17%) as a white solid.

Aufarbeitung

  1. customthe THF removed in vacuo
  2. extractionThe aqueous residue was extracted with EtOAc
  3. washthe combined organic extracts were washed with water and brine
  4. dry with materialdried (Na2SO4)
  5. filtrationfiltered
  6. customevaporated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-165e7a98faf54bb7bf90359cc1217e99
Quelldatensatz
uspto-grants-2016_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09249085B2

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