Information AboutTerpineol |
| CATEGORIES ABOUT TERPINEOL | |
| terpenes and terpenoids | |
| alcohols | |
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Terpineol is a naturally occurring Monoterpene Alcohol that has been isolated from a variety of sources such as Cajuput Oil , Pine Oil , and Petitgrain oil Merck Index'', 11th Edition, '''9103'''.. There are three Isomer s, ''alpha''-, ''beta''-, and ''gamma''-terpineol, the last two differing only by the location of the Double Bond . Terpineol is usually a mixture of these isomers with ''alpha''-terpineol as the major constituent. : Terpineol has a pleasant odor similar to lilac and is a common ingredient in perfumes, cosmetics, and flavors. Although it is naturally occurring, terpineol is commonly manufactured from the more readily available Alpha-pinene . In one study an alternative route was demonstrated starting from D-limonene ''A Practical Synthesis of d--Terpineol via Markovnikov Addition of d-Limonene Using Trifluoroacetic Acid'' Yoshifumi Yuasa and Yoko Yuasa Org. Process Res. Dev.; 2006; 10(6) pp 1231 - 1232; (Article) : : Limonene is reacted with Trifluoroacetic Acid in a Markovnikov Addition to a trifluoro acetate intermediate which is easily hydrolyzed with Sodium Hydroxide to α-terpineol with 76% selectivity. Side products are the β-terpineol in a mixture of Cis-isomer and trans isomer and 4-terpineol. REFERENCES EXTERNAL LINKS
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