Jasmone

Cis-3 -methyl-2 -(2- pentenyl) -2-cyclopenten -1-one

Colorless, odorless liquid

Fixed

0.94 g · cm -3 ( 20 ° C)

• 258 ° C
• 134-135 ° C ( 16 hPa)

Little in water

1.4979 (22 ° C)

Attention

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Jasmone, in its cis form, is an essential part of the fragrance of jasmine flowers and has been used in this form by the Romans for perfume production.

Occurrence

Cis- jasmonic occurs in the flowers of jasmine.

Chemical Properties

Cis- jasmonic belongs to the group of jasmonates and ketones. It is one of the two isomeric forms of the Jasmons, wherein present in natural jasmine extract only cis -jasmone in the chemical production, however, the trans -jasmone. This difference can be artificially produced jasmone be detected. Pure cis- jasmonic is a white odorless solid, a mixture of cis -and trans -jasmone other hand, is a yellowish liquid with a fruity spicy odor that smells sweet and floral in dilution. The refractive index of pure cis -jasmone is 1.50.

Biological Significance

In plants, cis- jasmonic is involved in the defense strategy against insects. It is released when the insect infested plants. So it attracts predators of insects ( eg, aphids ). At the same time disturb the fertility of the insects the connection.