Stearic Acid → Isopropenyl stearate

HRID 1154283

Reaktionsgleichung

Reaktionsgleichung von HRID 1154283
[C:1]([OH:20])(=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18].[CH:21]#[C:22][CH3:23].C=C=C.CCC>C([O-])(=O)C.[Zn+2].C([O-])(=O)C>[C:1]([O:20][C:22]([CH3:23])=[CH2:21])(=[O:19])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH3:18]

Komponenten

6

Edukt 4

HCID 5281Stearic AcidHCID 6334PropaneHCID 6335Propyne2×HCID 10037Allene

Produkt 1

HCID 22506410Isopropenyl stearate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 11192Zinc AcetateKatalysator

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

The zeolite was prepared in a conventional way using a 1N aqueous zinc acetate solution and drying the partially exchanged zeolite for about 16 hours at about 150° C. The dried zeolite contained about 4.0% zinc. Fifteen grams of the loaded zeolite plus 100 g (0.36 moles) of melted stearic acid were sealed in a 1-liter pressure vessel equipped with a magnetic stirrer, a gas inlet tube and a thermocouple, and the air within replaced by nitrogen. Approximately 80 ml of a liquified gas, the composition of which is about 60% of a 50--50 mixture of propyne and allene and about 40% propane, containing approximately 0.5 mole methyl acetylene in a pressure burette was pushed into the pressure vessel using pressurized nitrogen gas. An electric heater was used to heat the vigorously stirred mixture for 10 minutes at 120° C. at a pressure of about 400 pounds per square inch at which time the pressure vessel and its contents were rapidly cooled and the pressure in the vessel discharged to atmospheric pressure. Infrared analysis of the pale ivory colored solid gave the same spectra as that of a reference sample of isopropenyl stearate.

Aufarbeitung

  1. dry with materialdrying the partially exchanged zeolite for about 16 hours at about 150° C
  2. customequipped with a magnetic stirrer, a gas inlet tube
  3. temperaturewere rapidly cooled

Quellen und Nachweise

ORD-Eintrag
ord-71688b4eef5f41a2aa866f555da54f8a
Quelldatensatz
uspto-grants-1984_12
Patentnummer
US04488996

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