Ethylene Oxide → Bis(2-hydroxyethyl) terephthalate

HRID 328316

Reaktionsgleichung

Reaktionsgleichung von HRID 328316
[C:1]([OH:12])(=[O:11])[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1.[CH2:13]1[O:15][CH2:14]1.[CH2:16]([C:20](C)=[O:21])C(C)C>>[OH:21][CH2:20][CH2:16][O:7][C:6](=[O:8])[C:5]1[CH:9]=[CH:10][C:2]([C:1]([O:12][CH2:14][CH2:13][OH:15])=[O:11])=[CH:3][CH:4]=1

Komponenten

4

Edukt 3

HCID 6354Ethylene OxideHCID 7489Terephthalic AcidHCID 7909Methyl Isobutyl Ketone

Produkt 1

HCID 13739Bis(2-hydroxyethyl) terephthalate

Reaktionsbedingungen

Temperatur
150 °C

Versuchsvorschrift

Terephthalic acid (0.25 mole), the catalyst of Example II (0.5g), and methyl isobutyl ketone (250 ml) is charged to an autoclave and heated to about 150° C. A slight stoichiometric excess of ethylene oxide is added to the autoclave. A slight exotherm is observed. After about 1 hour, the reaction mixture is removed from the autoclave, cleaned, and filtered. Upon cooling, a good yield of bis(2-hydroxyethyl)terephthalate is obtained in the form of a precipitate.

Aufarbeitung

  1. customthe reaction mixture is removed from the autoclave
  2. filtrationfiltered
  3. temperatureUpon cooling

Quellen und Nachweise

ORD-Eintrag
ord-4e8b824ae619473baa8b82a977820ac8
Quelldatensatz
uspto-grants-1977_04
Patentnummer
US04017429

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