7.linalool
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Linalool is a colorless liquid that is stable and naturally occurs as a minor constituent in roses, rosewood, and lavender. It is an optically active acyclic oxygenated monoterpenoid with a boiling point of 198-199C and molecular formula of C10H18O. It contains two double bonds, as indicated by its reaction with bromine to form tetra bromine. It contains a tertiary alcohol functional group, as shown by its reaction with PCl5. Linalool is isomeric with geraniol and can be synthesized by steam distillation from natural sources.
![OH group [tertiary alcohol]
• It reacts with PCl5 hence OH is present.
• On catalytic dehydrogenation yield oleffin
reveals that presence of tertiary OH group.](https://image.slidesharecdn.com/7-180305102813/85/7-linalool-5-320.jpg)
7.linalool
- 1. linalool Prepared by Dr. N.GOPINATHAN ASSISTANT PROFESSOR DEPARTMENT OF PHARMACEUTICAL CHEMISTRY FACULTY OF PHARMACY SRI RAMACHANDRA UNIVERSITY CHENNAI-116 TAMILNADU INDIA
- 2. Properties • 3,7-Dimethylocta-1,6-dien-3-ol • Colourless Liquid • Stable • Origin: Rose, rosewood, Lavender, minor constituent of others. • Optially active acyclic oxygenated monoterpenoid • Boiling point 198-199C • Molecular formulae: C10H18O
- 3. Structure
- 4. Presence of double bond • On bromination yield tetra bromine indicates presence of two double bond.
- 5. OH group [tertiary alcohol] • It reacts with PCl5 hence OH is present. • On catalytic dehydrogenation yield oleffin reveals that presence of tertiary OH group.
- 6. Linalool is isomeric with geraniol steam at 200C
- 7. Synthesis