Tetraethylene Glycol → Heptaethylene glycol

HRID 1658923

Reaktionsgleichung

Reaktionsgleichung von HRID 1658923
[Na].[CH2:2]([OH:14])[CH2:3][O:4][CH2:5][CH2:6][O:7][CH2:8][CH2:9][O:10][CH2:11][CH2:12][OH:13].C1(S(O[CH2:25][CH2:26][O:27][CH2:28][CH2:29][O:30][CH2:31][CH2:32][OH:33])(=O)=O)C=CC=CC=1.C1(S([O-])(=O)=O)C=CC=CC=1.[Na+]>>[CH2:12]([OH:13])[CH2:11][O:10][CH2:9][CH2:8][O:7][CH2:6][CH2:5][O:4][CH2:3][CH2:2][O:14][CH2:25][CH2:26][O:27][CH2:28][CH2:29][O:30][CH2:31][CH2:32][OH:33]

Komponenten

5

Edukt 4

HCID 8200Tetraethylene GlycolHCID 517327Sodium benzenesulfonateHCID 5360545SodiumHCID 213163252-(2-(2-Hydroxyethoxy)ethoxy)ethyl benzenesulfonate

Produkt 1

HCID 79718Heptaethylene glycol

Versuchsvorschrift

Dissolve one equivalent of sodium in at least 5 equivalents of tetraethylene glycol and then add one equivalent of triethylene glycol monobenzenesulfonate. Heat the resulting solution at 100° to 150°C until the elimination of sodium benzene sulfonate is substantially complete. Remove the insoluble sulfonate salt by filtration and fractionally distill the resulting product in vacuo to obtain heptaethylene glycol as the higher boiling fraction.

Aufarbeitung

  1. customRemove the insoluble sulfonate salt
  2. filtrationby filtration
  3. distillationfractionally distill the resulting product in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-4508245185b04a7e814ced95acb02b5f
Quelldatensatz
uspto-grants-1976_06
Patentnummer
US03966766

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