Identification of a Conjugated Diene from Eucalyptus Oil
Purpose:
The purpose of this experiment was to prepare the Diels-Alder adduct of the unknown
Conjugated diene in eucalyptus oil, to separate the adduct, and identify the unknown diene from the melting point of it¡¯s adduct.
Introduction:
This experiment was performed using techniques of heating under reflux, vacuum filtration, recrystallization, and melting point measurements. These techniques were used to separate the Diels-Alder adduct of the unknown conjugated diene in eucalyptus oil and identify the diene. Dienes contribute to the characteristic flavors and aromas that are found in the essential oils of many plants. Some of these dienes are conjugated and have the ability to make Diels-Alder adducts with maleic anhydride. The Diels-Alder reaction is the conjugate addition of an alkene to a diene. In order for a Diels-Alder reaction to occur the diene must exist as an s-cis conformation and must be conjugated.......
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Approximate Pages: 3 (260 words per double-spaced page) |