Water → (2-Oxo-4-propylpyrrolidin-1-yl)methyl diethylcarbamate

HRID 1295816

Reaktionsgleichung

Reaktionsgleichung von HRID 1295816
[OH:1][CH2:2][N:3]1[CH2:7][CH:6]([CH2:8][CH2:9][CH3:10])[CH2:5][C:4]1=[O:11].C(N(CC)CC)C.[CH2:19]([N:21]([CH2:25][CH3:26])[C:22](Cl)=[O:23])[CH3:20].O>ClCCl>[CH2:19]([N:21]([CH2:25][CH3:26])[C:22](=[O:23])[O:1][CH2:2][N:3]1[CH2:7][CH:6]([CH2:8][CH2:9][CH3:10])[CH2:5][C:4]1=[O:11])[CH3:20]

Komponenten

6

Edukt 4

HCID 962WaterHCID 6916Diethylcarbamoyl chlorideHCID 8471TriethylamineHCID 113326021-(Hydroxymethyl)-4-propylpyrrolidin-2-one

Produkt 1

HCID 11448237(2-Oxo-4-propylpyrrolidin-1-yl)methyl diethylcarbamate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel3×

Versuchsvorschrift

To a solution of 1-(hydroxymethyl)-4-propyl-pyrrolidin-2-one a24 (4 g, 25.44 mmol) and triethylamine (1.2 eq, 30.53 mmol, 3.089 g; 4.26 ml) in 25 ml of dichloromethane was added dropwise a solution of diethylcarbamyl choride (1.1 eq, 27.99 mmol, 3.795 g, 3.55 ml) in dichloromethane (5 ml) at room temperature. The crude mixture was allowed to react under agitation and inert atmosphere overnight. Hydrolysis (15 ml of water), extraction (CH2Cl2), drying of the combinated organic layers (MgSO4), filtration and solvent evaporation under reduced pressure gave (2-oxo-4-propylpyrrolidin-1-yl)methyl diethylcarbamate a26 (100%) which was used without any further purification.

Aufarbeitung

  1. customto react under agitation and inert atmosphere overnight
  2. dry with materialdrying of the combinated organic layers (MgSO4), filtration and solvent evaporation under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-45e4ba8aba6b4dfc97a9ebe6b94f1f4e
Quelldatensatz
uspto-grants-2007_07
Patentnummer
US07244747B2

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