Thermal Behavior of Pinan-2-ol and Linalool
AbstractLinalool is an important intermediate for syntheses of isoprenoid fragrance compounds and vitamins A and E. One process option for its production is the thermal gas-phase isomerization of cis- and trans-pinan-2-ol. Investigations of this reaction were performed in a flow-type apparatus in a temperature range from 350–600 °C and a residence time range of 0.6–0.8 s. Rearrangement of the bicyclic alcohol led to linalool, plinols arising from consecutive reactions of linalool and other side products. Effects of residence time, temperature, surface-to-volume-ratio, carrier gas, and the presence of additives on yield and selectivity were studied. Furthermore, the effects of such parameters on ene-cyclization of linalool affording plinols were investigated. Results indicate that manipulation of the reaction in order to affect selectivity is difficult due to the large free path length to other molecules in the gas phase. However, conditions have been identified allowing one to increase the selectivity and the yield of linalool throughout pyrolysis of pinan-2-ol.
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Leiner, J.; Stolle, A.; Ondruschka, B.; Netscher, T.; Bonrath, W. Thermal Behavior of Pinan-2-ol and Linalool. Molecules 2013, 18, 8358-8375.
Leiner J, Stolle A, Ondruschka B, Netscher T, Bonrath W. Thermal Behavior of Pinan-2-ol and Linalool. Molecules. 2013; 18(7):8358-8375.Chicago/Turabian Style
Leiner, Janne; Stolle, Achim; Ondruschka, Bernd; Netscher, Thomas; Bonrath, Werner. 2013. "Thermal Behavior of Pinan-2-ol and Linalool." Molecules 18, no. 7: 8358-8375.