Water → tert-Butyl 4-hydroxy-4-(nitromethyl)piperidine-1-carboxylate

HRID 1363529Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1363529
[O:1]=[C:2]1[CH2:7][CH2:6][N:5]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[CH2:4][CH2:3]1.[O-]CC.[Na+].O.[N+:20]([CH3:23])([O-:22])=[O:21]>C(O)C>[OH:1][C:2]1([CH2:23][N+:20]([O-:22])=[O:21])[CH2:3][CH2:4][N:5]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[CH2:6][CH2:7]1

Komponenten

6

Edukt 4

HCID 962WaterHCID 6375NitromethaneHCID 735900tert-Butyl 4-oxopiperidine-1-carboxylateHCID 2723922Sodium ethoxide

Produkt 1

HCID 53486300tert-Butyl 4-hydroxy-4-(nitromethyl)piperidine-1-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel3×

Versuchsvorschrift

To a solution of tert-butyl 4-oxopiperidine-1-carboxylate (52.65 g, 264 mmol) in nitromethane (21 mL) and ethanol (8 mL) was added a solution of sodium ethoxide in ethanol (2.67 M, 5.0 mL, 13.4 mmol). The mixture was stirred at rt and more ethanol (30 mL) was added. The mixture was sonicated for 15 min, stirred overnight, then sonicated again. To the mixture was added water (400 mL). The solid was isolated by filtration, washed with water (300 mL), and dried to yield tert-butyl 4-hydroxy-4-(nitromethyl)piperidine-1-carboxylate as a white solid, 67.60 g (98%).

Aufarbeitung

  1. customThe mixture was sonicated for 15 min
  2. stirringstirred overnight
  3. customsonicated again
  4. customThe solid was isolated by filtration
  5. washwashed with water (300 mL)
  6. customdried

Quellen und Nachweise

ORD-Eintrag
ord-47171e87127943298acacf78b366a2e5
Quelldatensatz
uspto-grants-2011_02
Patentnummer
US07884207B2

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