header photo

DR ANTHONY MELVIN CRASTO Ph.D, Helping millions with free academic information, million hits on google

Determined to put information in one place and within easy reach of millions of students, teachers , researchers, academia, industry etc No advertisements and non commercial, purely academic, sites not submitted for advertisement

Photo above is at RJ College, Ghatkopar, Mumbai,India,  chembond, jul 2012anicheck.gif (1995 bytes)

fish spelling out Welcome

To take maximum advantage of the resources on this page, you will need the following:



Cis Jasmone

copy paste link on browser

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

animated pumpkinrow halloween

fish in a line


Thane, india


Blog posts April 2012

Cucurbiturils , molecular container that can encapsulate drug molecules and increase the solubility of drugs

April 16, 2012
Giving drug dropouts a new lease of life
Researchers in the US have designed a molecular container that can encapsulate drug molecules and increase their solubility - in one case by almost 3000 times. The new container appears to have low toxicity and can be built from readily available reagents. The…

Read more

An Efficient Asymmetric Synthesis of Manzacidin C

April 4, 2012
"An Efficient Asymmetric Synthesis of Manzacidin C" Tran, K.; Lombardi, P. J.; Leighton, J. L.

James L. Leighton

Org. Lett. 200810, 3165-3167. [Link


MOBILE-+91 9323115463

Read more

Imidazole derivatives: A comprehensive survey of their recognition properties

April 2, 2012

Imidazole derivatives: A comprehensive survey of their recognition properties

Pedro Molina ,  Alberto Tárraga and Francisco Otón

Affiliation Information

1. Departamento de Química Orgánica; Universidad de Murcia; Campus de Espinardo, , Spain

Org. Biomol. Chem., 2012, 10, 1711-1724


Read more

3 blog posts