Carbon Dioxide → Ethanaminium, 2-hydroxy-N-(2-hydroxyethyl)-N,N-dimethyl-, hydroxide

HRID 1250805Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1250805
C(=O)=[O:2].[CH3:4][N:5]([CH3:9])[CH2:6][CH2:7][OH:8].[CH2:10]1[O:12][CH2:11]1>O>[OH-:2].[OH:8][CH2:7][CH2:6][N+:5]([CH2:10][CH2:11][OH:12])([CH3:9])[CH3:4]

Komponenten

5

Edukt 3

HCID 280Carbon DioxideHCID 6354Ethylene Oxide2×HCID 79022-(Dimethylamino)ethanol

Produkt 1

HCID 3017041Ethanaminium, 2-hydroxy-N-(2-hydroxyethyl)-N,N-dimethyl-, hydroxide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A two-liter three-necked flask equipped with a thermometer, magnetic stirrer, dry ice condenser, cooling bath, and nitrogen inlet was charged with about 267 grams of dimethylethanolamine (DMEA) and 330 grams of de-ionized water. About 128 grams of ethylene oxide was fed slowly through a feeding tube into the reaction mixture using moderate agitation, and the reaction temperature was maintained below 20° C. After the ethylene oxide addition was completed, the reaction was allowed to digest for an additional hour. The reaction mixture was then purged with nitrogen for one hour. The product is a clear and colorless solution. However, after about four days of standing at room temperature, the product darkened somewhat.

Aufarbeitung

  1. temperaturecooling bath, and nitrogen inlet
  2. temperaturethe reaction temperature was maintained below 20° C
  3. waitto digest for an additional hour
  4. customThe reaction mixture was then purged with nitrogen for one hour

Quellen und Nachweise

ORD-Eintrag
ord-9266f831d5554faa9307be2f077813e1
Quelldatensatz
uspto-grants-2002_01
Patentnummer
US06340559B1

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