Talk:Ester

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I think the ester_compound page should be moved back here. The other pages are not as important as the chemistry one, except for the ester, alaska one but a note at the top of the page would suffice for that. Ester final fantasy is trivial and esther i the bible is not even the same spelling. Its not called an ester compound anyway, if anything it should just be ester (chemistry). Borb 08:28, 6 May 2005 (UTC)

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It might do to describe which isomer of the pentyl radicals are refered to in some of the esters given.

• Given that one-carbon differences in chain length lead to distinguishable

odors, and that different optical isomers of odorants/flavorants (eg, carvone) lead to distinguishable odors, I would be *very* surprised if there were not also a dependency on pentyl chain isomerism.

Could anyone explain how the term mono-ester and di-ester is used?

• This page needs a bit on mono, di and poly esters (I linked it to polyester page already, but thats also not very good). Basically a monoester is just an ester (one ester) a di-ester is two esters bonded together (the same way as polyesters).

Contents 1 Chemical properties 2 move ester compound back? 3 Methyl butanoate and Ethyl butanoate 4 Ester who? 5 Nomenclature

[edit] Chemical properties

I was frustrated by the lack of information on the chemical properties of esters. Are the reactions listed the only ones that it usually goes through? Could someone please post more information?

The reaction(s) listed are not the only ones esters can undergo. A discussion of all the reactions esters can be involved in can fill up an entire chapter of an organic chemistry book. It's not practical to list them all in a general encyclopedia. Some day, when I have time, I might do some work on this esters article. H Padleckas 09:19, 10 Dec 2004 (UTC)

Some of the previous few edits, including mine, have improved this article - especially the definition of ester (needed to encompass inorganic acid esters), but some day I would like to do still more to improve this article. H Padleckas 08:47, 14 July 2005 (UTC)

I'll get some info up in the future.

[edit] move ester compound back?

yes, the ester content did move to ester compound because other ester (esther) definitions started to pop up. feel free though to revert this edit back to the original but please consider a solution for the other definitions.

[edit] Methyl butanoate and Ethyl butanoate

I started researching the net to verify that methyl butanoate and ethyl butanoate both have a pineapple smell. Here is what I found up this time:

• [1] says that both methyl butanoate and ethyl butanoate smell of pineapple.

• [2] lists ethyl butanoate under pineapple.

• [3] says that ethyl butanoate is pineapple [flavor].

• Wikipedia article on Aroma compound says that methyl butanoate smells of pineapple or apple and that ethyl butanoate smells of pineapple. The individual articles on these esters also states this.

• [4] says that methyl butanoate is apple [flavor] and ethyl butanoate is pineapple [flavor].

• [5] says that methyl butanoate smells of pineapple.

Based on these findings and for consistency with the rest of Wikipedia, I edited the list under the Physicals section of the Ester article to state the methyl butanoate smells of pineapple or apple and ethyl butanoate smells of pineapple. It's certainly possible for very similar compounds to have similar smells. A pineapple does not necessarily have to be flavored with only a single compound. H Padleckas 16:37, 17 July 2005 (UTC)

[edit] Ester who?

Can anyone add the explanation or story behind the name? I'm not sure, maybe I'm mixing with another compound name, but I've heard about some compound named after the lover of the chemist who've discovered it. Is this the same compound?—The preceding unsigned comment was added by Cow2001 (talk • contribs).

It might be easier if you had links that actually showed the structure.—The preceding unsigned comment was added by 65.27.132.105 (talk)

[edit] Nomenclature

If anyone has the rules handy (I don't right now), a description of the IUPAC method for naming esters would be handy. 24.118.220.84 06:36, 5 May 2004 (UTC)

Agreed. Not to mention the inclusion of naming esters as substituents.134.250.70.81 02:45, 22 February 2007 (UTC)

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69.140.164.142 13:12, 6 April 2007 (UTC)