Pinene (C10H16) is a colorless, volatile bicyclic monoterpene found in essential oils from pine trees and various other plants. It has applications as a solvent, in resin manufacturing, and possesses health benefits such as anti-inflammatory and bronchodilator effects. The two isomers, α-pinene and β-pinene, are derived from geranyl pyrophosphate through specific cyclization processes.

1. 11/24/2017 1RABIA AZIZ

2. RABIA AZIZ
BS THIRD YEAR CHEMISTRY
Jinnah University for Women Karachi
PINENE
11/24/2017 2RABIA AZIZ

3. INTRODUCTION
11/24/2017 3RABIA AZIZ

4. Introduction
Pinene
• Pinene (C10H16) is a bicyclic monoterpene.
• Pinene are fragrant oils.
Properties
• Pinene is a colorless, volatile terpene liquid
• Molecular weight of 136.23
Importance
• It is used as solvents
• It is used in making resins.
• It is used chiefly in the manufacture of camphor.
11/24/2017 4RABIA AZIZ

5. SOURCES OF PINENE
11/24/2017 5RABIA AZIZ

6. SOURCES
• It is found in many essential oils of pine trees.
• Pinene can also be found in conifer trees, orange peels,
turpentine, pine needles, rosemary, dill, basil, and parsley.
• Many plants from many botanical families contain the
compound, including:
 Cuminum cyminum
 Humulus lupulus
 Pinus pinaster
 Clausena anisata
 Cannabis sativa
 Cannabis indica
11/24/2017 6RABIA AZIZ

7. PINENE’S EFFECTS ON HEALTH AND
BENEFITS
11/24/2017 7RABIA AZIZ

8. Pinene’s Effects and Benefits
Some of pinene’s known effects and benefits
include:
• Anti-inflammatory
• Bronchodilator (helps improve airflow to
lungs)
• Helps counter short-term memory loss
associated with THC
• Promotes alertness
11/24/2017 8RABIA AZIZ

9. USES OF PINENE
11/24/2017 9RABIA AZIZ

10. Uses
1. α-Pinene is an anti-inflammatory
2. α-pinene is used in the manufacture of camphor,
solvents, plastics, and insecticides.
3. Turpentine:
It is used as a solvent.
It is used as a source of materials for organic
synthesis.
It is used for thinning oil-based paints, for
producing varnishes, and as a raw material for
the chemical industry.
11/24/2017 10RABIA AZIZ

11. PINENE ISOMERS
11/24/2017 11RABIA AZIZ

12. Isomers Of Pinene
There are two structural isomers of pinene
found in nature:
α-pinene
β-pinene
Turpentine contains 58%-65% a-pinene and
about 30% of ß-pinene.
11/24/2017 12RABIA AZIZ

13. Alpha Pinene
11/24/2017 13RABIA AZIZ

14. SYNTHESIS OF PINENE
11/24/2017 14RABIA AZIZ

15. Synthesis of Pinene
α-Pinene and β-pinene are both produced from
geranyl pyrophosphate, via cyclisation of
linaloyl pyrophosphate followed by loss of a
proton from the carbocation equivalent.
11/24/2017 15RABIA AZIZ