Reaktion #1504227

Reaktionsgleichung

8-cyano-7-octenoic acid

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8-cyanooctanoic acid

Lösungsmittel

toluene

Reaktionsbedingungen

Aufarbeitung

1. 1
   FiltrationAfter filtration of the catalyst and evaporation of the solvent, 165 g of an oil
2. 2
   workup.DISTILLATIONthat distills at 150° C. at 0.05 torr
3. 3
   Sonstigeare recovered

Vorschrift

167 g of 8-cyano-7-octenoic acid dissolved in 800 ml of toluene are hydrogenated selectively at 2 bar in an autoclave in the presence of 10 g of Pd on charcoal at 5% at 50° C. for 5 hours. After filtration of the catalyst and evaporation of the solvent, 165 g of an oil that distills at 150° C. at 0.05 torr are recovered. The product has been identified as 8-cyanooctanoic acid by I.R. (film) analysis techniques: 3400, 3000, 2950, 2875, 2260, 1710, 1430 cm-1 and mass spectrometry by electron-impact ionization (70 eV): 170, 152, 140, 123, 110, 94, 83, 69, 55, 41. Analytically calculated values for C9H15NO2 (169.22): C 63.88%, H 8.93%, N 8.28%. Found: C 63.76%, H 9.12%, N 8.37%.

Quelle