Nicotinic Acid → Iso-hexadecyl nicotinate
Reaktionsgleichung
[C:1]([OH:9])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[N:4][CH:3]=1.[CH2:10](O)[CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH:23]([CH3:25])[CH3:24].S(Cl)(Cl)=O>>[C:1]([O:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH:23]([CH3:24])[CH3:25])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[N:4][CH:3]=1Komponenten
4
Reaktionsbedingungen
- Temperatur
- 80 °C
Versuchsvorschrift
Iso-hexadecyl nicotinate was prepared from nicotinic acid and a commercial material, iso-hexadecyl alcohol, obtained from Farbwerke Hoechst AG. The general method of Example 1 was used except that the temperature after thionyl chloride addition was maintained at 80° C. for 2 hours, and after the esterification reaction the solution was cooled and washed with 0.5M sodium hydroxide, 0.5M hydrochloric acid and water. The solution was treated with activated carbon (2.5 % on the expected weight of product) at 50° C. for 1 hour, filtered and the solvent removed under reduced pressure. The light brown oil had an estimated purity of 93.4% and was distilled (boiling range 141°-146° C. at 0.03 mm mercury pressure) to provide a product of 99.8% estimated purity.