Palmitic Acid → Pentadecane

HRID 1583850

Reaktionsgleichung

Reaktionsgleichung von HRID 1583850
[C:1](O)(=O)[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]C>[Ni].C1CCCCC1.C([Sn](CCCC)(CCCC)CCCC)CCC>[CH3:15][CH2:14][CH2:13][CH2:12][CH2:11][CH2:10][CH2:9][CH2:8][CH2:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2][CH3:1]

Komponenten

5

Edukt 1

HCID 985Palmitic Acid

Produkt 1

HCID 12391Pentadecane

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 935NickelKatalysatorHCID 8078CyclohexaneLösungsmittelHCID 15098TetrabutyltinLösungsmittel

Versuchsvorschrift

A drum provided with a distillation system is successively fed with 50 g of palmitic acid, 10 g of dry Raney nickel in cyclohexane and 870 mg of tetrabutyl tin. The mixture is slowly heated while distilling the cyclohexane and passing a hydrogen stream, the drum being brought to a temperature of 300°-310° C. A liquid product distills at 210°-230° C. At time intervals, additional amounts of palmitic acid, totalling 150 g, are injected into the drum, while distilling progressively a product which, as shown by VPC analysis, consists mainly of a mixture of differently positioned isomers of linear pentadecene, comprising about 60% of 1-pentadecene. Some pentadecane has formed. The C15 olefin weight is 63.5 g; the selectivity to C15 olefin is 69% with respect to the converted acid.

Aufarbeitung

  1. customA drum provided with a distillation system
  2. temperatureThe mixture is slowly heated
  3. distillationwhile distilling the cyclohexane
  4. custombeing brought to a temperature of 300°-310° C
  5. distillationA liquid product distills at 210°-230° C
  6. distillationwhile distilling progressively a product which
  7. additionconsists mainly of a mixture

Quellen und Nachweise

ORD-Eintrag
ord-842fde2b4a6146b5b693ce5b937ffec9
Quelldatensatz
uspto-grants-1985_11
Patentnummer
US04554397

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