Hydrochloric Acid → 4-Dimethylaminobenzyl alcohol

HRID 1757508

Reaktionsgleichung

Reaktionsgleichung von HRID 1757508
[CH3:1][N:2]([CH3:11])[C:3]1[CH:10]=[CH:9][C:6]([CH:7]=[O:8])=[CH:5][CH:4]=1.[BH4-].[Na+].Cl>C(O)C>[CH3:1][N:2]([CH3:11])[C:3]1[CH:10]=[CH:9][C:6]([CH2:7][OH:8])=[CH:5][CH:4]=1

Komponenten

5

Versuchsvorschrift

Mix 4-dimethylaminobenzaldehyde (3.3 g, 22 mmol), sodium borohydride (830mg, 22 mmol) and absolute ethanol (25 mL). Stir at room temperature until the reaction is complete, pour onto dilute hydrochloric acid and extract into ethyl acetate. Separate the organic phase and extract the aqueous phase with ethyl acetate (2×). Combine the organic phases and dry (MgSO4). Evaporate the solvent in vacuo and purify by silica gel chromatography to give 4-(dimethylamino)benzyl alcohol.

Aufarbeitung

  1. extractionextract into ethyl acetate
  2. customSeparate the organic phase
  3. extractionextract the aqueous phase with ethyl acetate (2×)
  4. dry with materialCombine the organic phases and dry (MgSO4)
  5. customEvaporate the solvent in vacuo
  6. custompurify by silica gel chromatography

Quellen und Nachweise

ORD-Eintrag
ord-1e00f12ae83842a6ba338e94c3133aa7
Quelldatensatz
uspto-grants-1995_08
Patentnummer
US05446068

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