Hydrochloric Acid → HCID 71093738, Verbindung

HRID 1409711Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1409711
C[O:2][C:3]([C:5]1(OC)[O:9][N:8]=[C:7]([C:10]2[CH:15]=[CH:14][C:13]([C:16]#[N:17])=[CH:12][C:11]=2[F:18])[CH2:6]1)=[O:4].[OH-].[Na+].Cl>O1CCCC1>[C:16]([C:13]1[CH:14]=[CH:15][C:10]([C:7]2[CH:6]=[C:5]([C:3]([OH:4])=[O:2])[O:9][N:8]=2)=[C:11]([F:18])[CH:12]=1)#[N:17]

Komponenten

5

Edukt 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 866861563-(4-Cyano-2-fluoro-phenyl)-5-methoxy-4,5-dihydro-isoxazole-5-carboxylic acid methyl ester

Produkt 1

HCID 71093738HCID 71093738, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

A mixture of 3-(4-cyano-2-fluoro-phenyl)-5-methoxy-4,5-dihydro-isoxazole-5-carboxylic acid methyl ester (172 mg), 1N aqueous NaOH solution (2 mL), and tetrahydrofuran (5 mL) is stirred at room temperature for 3 h. The reaction mixture is acidified with 1 N hydrochloric acid (approximately pH 3) and concentrated in vacuo. The residue is triturated with water and the precipitate is filtered off and dried to give the title compound. LC (method 18): tR=0.38 min; Mass spectrum (ESI−): m/z=231 [M−H]−.

Aufarbeitung

  1. concentrationconcentrated in vacuo
  2. customThe residue is triturated with water
  3. filtrationthe precipitate is filtered off
  4. customdried

Quellen und Nachweise

ORD-Eintrag
ord-2edb0fb4e3dd43f7aed6105505f3c49a
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08921398B2

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