Butylene glycol diacetate → Acetic Acid

HRID 1415441

Reaktionsgleichung

Reaktionsgleichung von HRID 1415441
[C:1]([O:4]CC[CH2:7][CH2:8][O:9][C:10](=O)[CH3:11])(=[O:3])[CH3:2].C(OC(OC(=O)C)CCC)(=O)C>>[O:9]1[CH2:8][CH2:7][CH2:11][CH2:10]1.[C:1]([OH:4])(=[O:3])[CH3:2]

Komponenten

4

Edukt 2

HCID 69410Butylene glycol diacetateHCID 182019Butanediol, diacetate

Produkt 2

HCID 176Acetic AcidAusbeute 93 %HCID 8028TetrahydrofuranAusbeute 90 %

Versuchsvorschrift

The tube reactor, charged with 110 grams of alumina catalyst (1/8 pellets, Harshaw A1-0104T), is maintained at 250° C while 25.0 grams of 1,4-butanediol diacetate and 50 ml. of water are admitted to the evaporator simultaneously from different addition funnels over a 20 minute period. The aqueous effluent collected contains tetrahydrofuran, acetic acid, and about 10% of the original diacetate. The mixture is again taken through the tube. The effluent from this second pass contains, as found by quantitative glpc analysis, 0.3 grams of residual butanediol diacetate (1% unconverted), 9.2 grams of tetrahydrofuran (90% yield), and 15.9 grams of acetic acid (93% yield).

Aufarbeitung

  1. additionThe tube reactor, charged with 110 grams of alumina catalyst (1/8 pellets, Harshaw A1-0104T)
  2. customof water are admitted to the evaporator simultaneously from different addition funnels over a 20 minute period
  3. customThe aqueous effluent collected

Quellen und Nachweise

ORD-Eintrag
ord-9066dc775fc047789a3c0742ef9fbcef
Quelldatensatz
uspto-grants-1977_01
Patentnummer
US04005113

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