Sodium borohydride → HCID 12536095, Verbindung

HRID 236892Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 236892
[O:1]1[C:6]2[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=2[C:4](=[O:11])[CH:3]=[C:2]1[CH:12]=[O:13].[BH4-].[Na+]>CO>[OH:13][CH2:12][C:2]1[O:1][C:6]2[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=2[C:4](=[O:11])[CH:3]=1

Komponenten

4

Edukt 2

HCID 4311764Sodium borohydrideHCID 104196624-oxo-4H-chromene-2-carbaldehyde

Produkt 1

HCID 12536095HCID 12536095, VerbindungAusbeute 55 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

A mixture of 4H-1-benzopyran-4-one-2-carboxaldehyde (400 mg, 0.0023 m) and sodium borohydride (8.8 mg. 0.0023 m) in methanol (20 ml) was stirred at room temperature for 30 minutes. The solvent was removed at reduced pressure to give a white solid. The solid was washed with water, sucked dry, and recrystallized from ethanol to give white crystals (220 mg, 55%), m.p. 165°-167°.

Aufarbeitung

  1. customThe solvent was removed at reduced pressure
  2. customto give a white solid
  3. washThe solid was washed with water
  4. customsucked dry
  5. customrecrystallized from ethanol

Quellen und Nachweise

ORD-Eintrag
ord-8d43d417ab5b4b19b0f78661905787b3
Quelldatensatz
uspto-grants-1979_06
Patentnummer
US04158663

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