Reaktionsgleichung
[BH4-].[Na+].[CH2:3]([O:10][C:11]1[CH:18]=[CH:17][C:14]([CH:15]=[O:16])=[CH:13][C:12]=1[N+:19]([O-:21])=[O:20])[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1.Cl>CO>[CH2:3]([O:10][C:11]1[CH:18]=[CH:17][C:14]([CH2:15][OH:16])=[CH:13][C:12]=1[N+:19]([O-:21])=[O:20])[C:4]1[CH:5]=[CH:6][CH:7]=[CH:8][CH:9]=1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
Under ice cooling, 75.7 g of sodium borohydride is introduced within one hour into 128.0 g of 4-benzyloxy-3-nitrobenzaldehyde in 4.2 l of methanol. After 1.5 hours of agitation at room temperature, 1.1 l of 2N HCl is added dropwise. The isolated reaction product is recrystallized from a mixture of 680 ml of diisopropyl ether and 170 ml of isopropanol, thus obtaining 103.0 g of 4-benzyloxy-3-nitrobenzyl alcohol, mp 76°-77° C.
Aufarbeitung
- customThe isolated reaction product
- customis recrystallized from a mixture of 680 ml of diisopropyl ether and 170 ml of isopropanol
Quellen und Nachweise
- ORD-Eintrag
- ord-332bfc4ec5674ccebc0f9df332c27bfd
- Quelldatensatz
- uspto-grants-1990_09
- Patentnummer
- US04958026
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