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Cis Jasmone

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Jasmone is a natural organic compound extracted from the volatile portion of the oil fromjasmine flowers. It is a colorless to pale yellow liquid that has the odor of jasmine. Jasmone can exist in two isomeric forms with differing geometry around the pentenyl double bond, cis-jasmone and trans-jasmone. The natural extract contains only the cis form, while synthetic material is often a mixture containing both forms, with the cis form predominating. Both forms have similar odors and chemical properties.

Jasmone is produced within plants by the metabolism of jasmonate, from linolenic acid by the octadecanoid pathway. It can act as either an attractant or a repellent for various insects. Commercially jasmone is used primarily in perfumes and cosmetics.

An attempt to make Z jasmone – an important constituent of many perfumes

In fact one synthesis uses the following as carbon sources:

cis (Z) jasmone ,

cas no 488-10-8, 3-methyl-2-[(2Z)-pent-2-en-1-yl]cyclopent-2-en-1-one

ref-(Can. J. Chem. 1978, Vol 56, p2301)

1    W. Theilheimer. Synthetic Methods of Organic Chemistry. Volume 31, 1977, p. 352 
2   Tetrahedron, 39 (24), p. 4127, 1983

Thomas Koch, Katja Bandemer, Wilhelm Boland (1997). "Biosynthesis of cis-Jasmone: a pathway for the inactivation and the disposal of the plant stress hormone jasmonic acid to the gas phase?". Helvetica Chimica Acta 80 (3): 838–850.doi:10.1002/hlca.19970800318.

Predict NMR spectrum

Formula: C10H14O
CAS#: 488-10-8
MW: 150.22






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Whats new in Chemistry

May 12, 2012
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Scientists discover chemistry of passion




Scientists say there is increase in the levels of hormones neutrophins and dopamine when cupid strikes.
LONDON, UNITED KINGDOM: Couples should not worry when the first flush of passion dims - scientists have identified the hormone changes which cause the switch from lust to cuddles. A team from the University of Pisa in Italy found the bodily chemistry which makes people sexually attractive to new partners lasts, at most, two years. When couples move into a “stable relationship” phase, other hormones take over, Chemistry World reports.



  




LOVE, actually is chemicals racing internally







Scientists say there is increase in levels of hormones neutrophins and dopamine when cupid strikes.
When couples fall in love, outwardly they experience dizziness, flushed face, sweaty palms and most prominent of all a wildly beating heart. But, internally, the feeling of love is due to chemicals racing around the brain and body.
The feelings, researchers found are due to dopamine, norepinephrine and phenylethylamine that human beings release. Dopamine is thought to be the “pleasure chemical,” producing a feeling of bliss. Norepinephrine is similar to adrenaline and produces the racing heart and excitement. Together these two chemicals produce elation, intense energy, sleeplessness, craving, loss of appetite and focused attention, discovered Helen Fisher, anthropologist at Rutgers University. “The human body releases the cocktail of love rapture only when certain conditions are met. And men more readily produce it than women, because of their more visual nature,” she added.



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