Naphthalene → 1-(1-Methylethyl)naphthalene

HRID 1577703Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1577703
[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1.[CH2:11]=[CH:12][CH3:13]>C1C2C(CCCC2)CCC1>[CH:12]([C:9]1[C:10]2[C:5](=[CH:4][CH:3]=[CH:2][CH:1]=2)[CH:6]=[CH:7][CH:8]=1)([CH3:13])[CH3:11]

Komponenten

4

Edukt 2

HCID 931NaphthaleneHCID 8252Propylene

Produkt 1

HCID 225351-(1-Methylethyl)naphthalene

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 7044DecalinLösungsmittel

Versuchsvorschrift

10 g of a perfluorodecanesulfonic acid C10F21SO3H was deposited via vacuum distillation on 75 g of porous chromosorb. 5 g of this catalyst was charged into a liquid-phase alkylation reactor together with 0.1 mol of naphthalene dissolved in 150 ml of decaline. Through the stirred solution, close to its boiling point (190° C.) propylene was passed through at a rate of 0.8 l/min. for one hour. Thereafter, the solution was stirred at the same temperature for one additional hour. After cooling, the catalyst was filtered off and the solution distilled in vacuum. The yield of isopropylnaphthalene obtained was 68% with an isomer composition of 92% β- and 8% α-isomer (analyzed by gas-liquid chromatorgraphy).

Aufarbeitung

  1. distillation10 g of a perfluorodecanesulfonic acid C10F21SO3H was deposited via vacuum distillation on 75 g of porous chromosorb
  2. temperatureAfter cooling
  3. filtrationthe catalyst was filtered off
  4. distillationthe solution distilled in vacuum

Quellen und Nachweise

ORD-Eintrag
ord-b75c3a7744bb47c5904076ffea826b31
Quelldatensatz
uspto-grants-1981_09
Patentnummer
US04288646

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