Lithium Hydroxide → HCID 89443662, Verbindung

HRID 1771810Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1771810
[C:1]([C:3]1[C:16]([NH:17][CH2:18][C:19]2[CH:24]=[C:23]([C:25]3[CH:30]=[CH:29][CH:28]=[C:27]([F:31])[CH:26]=3)[CH:22]=[CH:21][C:20]=2[F:32])=[C:15]([F:33])[CH:14]=[CH:13][C:4]=1[O:5][CH2:6][C:7]([O:9]C(C)C)=[O:8])#[N:2].[Li+].[OH-]>C1COCC1.O>[C:1]([C:3]1[C:16]([NH:17][CH2:18][C:19]2[CH:24]=[C:23]([C:25]3[CH:30]=[CH:29][CH:28]=[C:27]([F:31])[CH:26]=3)[CH:22]=[CH:21][C:20]=2[F:32])=[C:15]([F:33])[CH:14]=[CH:13][C:4]=1[O:5][CH2:6][C:7]([OH:9])=[O:8])#[N:2]

Komponenten

5

Edukt 2

HCID 3939Lithium HydroxideHCID 89444009HCID 89444009, Verbindung

Produkt 1

HCID 89443662HCID 89443662, VerbindungAusbeute 56 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a solution of isopropyl 2-[2-cyano-4-fluoro-3-[[2-fluoro-5-(3-fluorophenyl)phenyl]methylamino]phenoxy]acetate (220 mg, 0.48 mmol, 1 eq) in a mixture of THF (10 mL) and water (10 mL) was added LiOH (20 mg, 0.96 mmol, 2 eq). The reaction was stirred for 3 h then the THF removed in vacuo. The aqueous solution that remained was acidified to pH 4 with 3M HCl and the aqueous layer was extracted with EtOAc. The combined organic extracts were washed with brine, dried (Na2SO4), filtered and evaporated in vacuo. The residue obtained was triturated with a mixture of 2-methoxy-2-methylpropane (5 mL) and petroleum ether (20 mL) to give the desired product as an off-white solid (110 mg, 56%).

Aufarbeitung

  1. customthe THF removed in vacuo
  2. extractionthe aqueous layer was extracted with EtOAc
  3. washThe combined organic extracts were washed with brine
  4. dry with materialdried (Na2SO4)
  5. filtrationfiltered
  6. customevaporated in vacuo
  7. customThe residue obtained
  8. customwas triturated with a mixture of 2-methoxy-2-methylpropane (5 mL) and petroleum ether (20 mL)

Quellen und Nachweise

ORD-Eintrag
ord-e5823c1733ea469f939e84e859d2eb63
Quelldatensatz
uspto-grants-2016_02
Patentnummer
US09249085B2

Notizen zur Reaktion

Wird geladen…