Talk:Enanthic acid: Difference between revisions

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Etymology

Is there any source that justifies the common name "enanthic" for this acid? As far as I could get, "enanthic" refers to the flavor of wine, and Ethyl heptanoate is used in the flavor industry because of its odor that is similar to grape - but to go beyond this point would be original research by synthesis :-) Albmont (talk) 21:07, 22 December 2009 (UTC)[reply]

BTW: the German wikipedia article de:Önanthsäure gives the unsourced sentence Der Name kommt von griechisch οἶνος (oinos), der Wein, da sie erstmals im Rückstand von Weinhefe entdeckt wurde meaning The name comes from greek οἶνος (oinos), meaning Wine, (and here is the limit of my ferstehen of Deutsch). Albmont (talk) 21:11, 22 December 2009 (UTC)[reply]

Chemistry

As a person who minored in Chemistry and spent the last 6 years independently studying chemistry, I can confirm that Hydrogen Chloride when heated with heptanoic acid will catalyze decarboxylation of the fatty acid into an alkane. Namely, that alkane will form hexane, which is the main component of gasoline. The synthesis of hexane from heptanoic acid is not impractical. And if it is, impractical by what standards? If you think its impractical to perform decarboxylation with hydrogen chloride, then edit the wiki article on decarboxylation. What happens is the H from HCl moves into the low LUMO of the heptanoic acid, which is right between the carbon-carbon bond. The Hydrogen bonds to the carbon, the bond is broken, which causes the bond between the Carbon and hydrogen to break and since two bonds are broken where the Carboxyl group of the fatty acid, carbon dioxide is formed. Then the other hydrogen bonds with the Cl that was broken, and HCl is reformed.

It likely happens in half-reactions like this: H3C-5(CH2)-COOH + HCl + Heat -> H3C-4(CH2)-CH3 + Cl. + (COOH)+ Cl. + (COOH)+ -> HCl + CO2

But even if the half-reactions happen on the carboxyl group first, the end result is the same product: Hexane, HCl, and CO2. HCl does not react with Hexane but will catalyze decarboxylation.

You are asserting your beliefs about it being impractical, which is impractical.

My chemistry is correct, thats what a yale chemistry professor told me. --User:Schicagos

Also, edgar181 sucks.

Recent reverts

I recently reverted (and re-reverted) this edit to the article, which was sourced to a wikipedia user page. Per WP:RS, we need reliable sources for content that we include, and a wikipedia user page is not a reliable source. At absolutely best, it might be a self published, primary source, or a questionable source. We need a reliable secondary one instead. I'm happy to discuss further, but as of yet this doesn't meet our standards for sourcing. Thanks! — Jess· Δ ♥ 16:45, 10 April 2012 (UTC)[reply]

Removing the content as you did was the appropriate thing to do. The content describes chemistry that is dubious (at best). The synthesis of hexane from heptanoic acid is impractical, plant sources of heptanoic acid will never be "helpful in solving energy/fuel crisis", and claims about combustion are inaccurate. -- Ed (Edgar181) 16:53, 10 April 2012 (UTC)[reply]