p-Toluenesulfonic acid → Methyl 16-methylheptadecanoate

HRID 1066448

Reaktionsgleichung

Reaktionsgleichung von HRID 1066448
[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][CH:16]([CH3:18])[CH3:17].[C:21]1(C)C=CC(S(O)(=O)=O)=CC=1>>[C:1]([O:20][CH3:21])(=[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][CH:16]([CH3:17])[CH3:18]

Komponenten

3

Edukt 2

HCID 6101p-Toluenesulfonic acidHCID 2185916-Methylheptadecanoic Acid

Produkt 1

HCID 110444Methyl 16-methylheptadecanoate

Reaktionsbedingungen

Temperatur
117 °C

Versuchsvorschrift

About 780 grams of isostearic acid (acid number=194.4), 1 gram of p-toluenesulfonic acid were charged to a flask equipped with a heating mantle, stirrer, sub-surface inlet tube with a nitrogen purge and a condenser. The contents of the flask were heated under nitrogen flow to 117° C. About 400 grams of methanol were then added via the sub-surface inlet tube over 3.5 hours (acid number=9.6), 200 grams of additional methanol were added and the reaction continued for another 1.5 hours to obtain a final acid number of 0.6.

Aufarbeitung

  1. customequipped with a heating mantle, stirrer, sub-surface inlet tube with a nitrogen
  2. custompurge
  3. additionAbout 400 grams of methanol were then added via the sub-surface inlet tube over 3.5 hours (acid number=9.6), 200 grams of additional methanol
  4. additionwere added

Quellen und Nachweise

ORD-Eintrag
ord-96c91d37ee5548f2ab674ac273685ede
Quelldatensatz
uspto-grants-2001_06
Patentnummer
US06242620B1

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