tert.-Butyl N-(trans-1-benzyl-4-methoxypyrrolidin-3yl)carbamate → rac-tert-butyl N-[(3R,4R)-4-methoxypyrrolidin-3-yl]carbamate

HRID 981074Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 981074
C([N:8]1[CH2:12][C@@H:11]([O:13][CH3:14])[C@H:10]([NH:15][C:16](=[O:22])[O:17][C:18]([CH3:21])([CH3:20])[CH3:19])[CH2:9]1)C1C=CC=CC=1>CO.[Pd]>[CH3:14][O:13][C@@H:11]1[CH2:12][NH:8][CH2:9][C@H:10]1[NH:15][C:16](=[O:22])[O:17][C:18]([CH3:20])([CH3:19])[CH3:21]

Komponenten

4

Edukt 1

HCID 15069969tert.-Butyl N-(trans-1-benzyl-4-methoxypyrrolidin-3yl)carbamate

Produkt 1

HCID 15069971rac-tert-butyl N-[(3R,4R)-4-methoxypyrrolidin-3-yl]carbamate

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23938PalladiumKatalysatorHCID 887MethanolLösungsmittel

Versuchsvorschrift

6.7 g (22 mmol) of tert.-butyl N-(trans-1-benzyl-4-methoxypyrrolidin-3-yl)carbamate are hydrogenated in 150 ml of methanol on 2 g of palladium-on-active charcoal (10% of Pd) under 100 bar at 100° C. The catalyst is filtered off with suction, the filtrate is concentrated and the residue is distilled.

Aufarbeitung

  1. filtrationThe catalyst is filtered off with suction
  2. concentrationthe filtrate is concentrated
  3. distillationthe residue is distilled

Quellen und Nachweise

ORD-Eintrag
ord-9dae6dce72894b83b7015e3bf175de25
Quelldatensatz
uspto-grants-1991_02
Patentnummer
US04990517

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