Water → Gamma-Butyrolactone

HRID 264815

Reaktionsgleichung

Reaktionsgleichung von HRID 264815
[O:1]1[CH:5]=[CH:4][CH2:3][CH2:2]1.[OH2:6].[H][H]>[Re].O1CCCC1>[C:2]1(=[O:6])[O:1][CH2:5][CH2:4][CH2:3]1.[OH:1][CH2:5][CH2:4][CH2:3][CH:2]=[O:6]

Komponenten

7

Edukt 3

HCID 962WaterHCID 709342,3-DihydrofuranHCID 178418361HCID 178418361, Verbindung

Produkt 2

HCID 7302Gamma-ButyrolactoneHCID 930934-Hydroxybutanal

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 23947RheniumKatalysatorHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

In a manner similar to that described in Example 1 10 mL/h of 2,3-dihydrofuran and 8 mL/h of water were passed at 220° C. in a stream of carrier gas comprising 13 L/h of hydrogen over 47 g of the rhenium-on-activated charcoal catalyst described in Example 5 (reactor volume: 100 mL). At a conversion of 99.5%, γ-butyrolactone was formed with a selectivity of 98% (tetrahydrofuran: 0.3%; 4-hydroxybutyraldehyde: 0.5%; remainder: small amounts of various non-analyzed low-boiling fractions).

Aufarbeitung

  1. customwere passed at 220° C. in a stream of carrier gas

Quellen und Nachweise

ORD-Eintrag
ord-1b9409e04cca4241b2dd324edc154e69
Quelldatensatz
uspto-grants-1997_07
Patentnummer
US05646307

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