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For discussing the functions of different structures of all organisms.

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Postby 2810712 » Sun May 28, 2006 5:32 pm

resemblance in general is not required here, just the resemblance }in appropriate intensity[ regarding the characters that give smell.
i don't know what leads to the smell. I think the why most of chemicals don't smell like a given chemical will tell what characters in that chemical may lead to its typical smell, such that u choose the independent characters. right?
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Postby baikuza » Tue May 30, 2006 11:43 am

Ultrashogun wrote: does cyclohexan resemble benzene?


i think it is not. by elimination of 4 mol gasses of Hydrogen on hexene, and using enough heat on them. and not only by that way we can make benzene. :)
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Postby victor » Tue May 30, 2006 12:27 pm

baikuza wrote:
Ultrashogun wrote: does cyclohexan resemble benzene?


i think it is not. by elimination of 4 mol gasses of Hydrogen on hexene, and using enough heat on them. and not only by that way we can make benzene. :)


@Baikuza
You can't make benzene in that way...I can think up one reaction that may bring us into benzene synthesis which is Diels-Alder reaction (addition into conjugated dienes) followed by heating up with high pressure and concentrated strong bases.
About pheromone, I can say that pheromone has a simple structure (also not a unique one)..what makes them unique is not the pheromone but the receptor and its stereochemistry.

@2810712
Pheromone is not always in the shape of fatty acid. This is one of an ester shaped pheromone. It's secreted by female elephant which wanna attract its male to mate with her...:lol:
structure name: (Z)-7-dodecen-1-yl acetate (see the space there, don't misunderstood with ketone structure).
family : ester group
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Postby baikuza » Tue May 30, 2006 12:35 pm

@victor

vic, why you do not try google. my answer is not wrong.

about pheromone. i though it is secreted by insect, not elephant. if you have reference(s), please allow me to know.
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Postby victor » Tue May 30, 2006 12:44 pm

even though it's right, making aromaticity by heating up aliphatic chain requires more difficult way.
about pheromone, it's not only just by insects even though majority is secreted by insects...in fact, we (human) also secrete pheromone...for my pheromone example, please check this:

Organic chemistry-a short course 11th edition by Harold Hart and friends. Chapter 10: carboxylic acid and its derivations.
Then look for a sub-chapter titled Ester
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Postby baikuza » Tue May 30, 2006 12:47 pm

..... i mean, your pheromone's references. if that book i also have read it. (+_+)
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Postby victor » Tue May 30, 2006 12:55 pm

Yup, in that book you can find one sentence which imply that "pheromone are molecules not just secreted by insects, but also elephants."
Now, open that book and take a look on it...do you got it now???
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Postby baikuza » Tue May 30, 2006 12:57 pm

....... ok, thanks.
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Postby victor » Tue May 30, 2006 1:01 pm

baikuza wrote:i think it is not. by elimination of 4 mol gasses of Hydrogen on hexene, and using enough heat on them. and not only by that way we can make benzene. :)


about this benzene synthesis process, can you give me the literature or the site??
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Postby baikuza » Tue May 30, 2006 1:09 pm

http://www.chemguide.co.uk/organicprops/ arenes/manufacture.html

en.wikipedia.org/wiki/Benzene_ring
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Postby victor » Tue May 30, 2006 1:25 pm

I think next time, please write the reaction process and also include its catalyst
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