1-Butanol → 1,1-Dibutoxycyclohexane

HRID 482141

Reaktionsgleichung

Reaktionsgleichung von HRID 482141
[C:1]1(=[O:7])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[CH2:8]([OH:12])[CH2:9][CH2:10][CH3:11]>O.O.O.O.O.O.[Cl-].[Ce+3].[Cl-].[Cl-].C1(C)C=CC=CC=1>[CH2:6]([O:7][C:1]1([O:12][CH2:8][CH2:9][CH2:10][CH3:11])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1)[CH2:1][CH2:2][CH3:3]

Komponenten

5

Edukt 2

HCID 2631-ButanolHCID 7967Cyclohexanone

Produkt 1

HCID 2437181,1-DibutoxycyclohexaneAusbeute 185,8 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 22347666cerium(III) chloride hexahydrateKatalysatorHCID 1140TolueneLösungsmittel

Reaktionsbedingungen

Temperatur
25 °C

Versuchsvorschrift

In a 300-ml three-necked flask, 98 g (1 mole) of cyclohexanone, 148 g (2 moles) of n-butanol, 50 g of molecular sieve 4A, 2 mg of cerium chloride hexahydrate and 40 g of toluene were charged. The resulting mixture was stirred at 25° C. under atmospheric pressure for 12 hours in a nitrogen atmosphere. After the removal of the molecular sieve 4A, the solvent (toluene) and unreacted starting materials were distilled off under reduced pressure. Distillation of the residue under reduced pressure gave 212.2 g of cyclohexanone dibutyl acetal (yield: 93.1%).

Aufarbeitung

  1. customAfter the removal of the molecular sieve 4A
  2. distillationwere distilled off under reduced pressure
  3. distillationDistillation of the residue under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-dae1db1790a9481699e48cfae4a326c1
Quelldatensatz
uspto-grants-1998_08
Patentnummer
US05792876

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