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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: lukas.stib on June 26, 2020, 02:30:16 PM

Title: 2-Ethylhexanol with H2SO4
Post by: lukas.stib on June 26, 2020, 02:30:16 PM

Hello chemists,

please, is 2-ethyl-1-hexen  formed by the reaction of 2-ethylhexan-1-ol with sulfuric acid?

Thank you. Lukáš S.

Title: Re: 2-Ethylhexanol with H2SO4
Post by: chenbeier on June 26, 2020, 04:10:09 PM

Yes possible.

Title: Re: 2-Ethylhexanol with H2SO4
Post by: lukas.stib on June 26, 2020, 04:29:21 PM

OK, thank you.

Title: Re: 2-Ethylhexanol with H2SO4
Post by: Marko on June 27, 2020, 04:41:05 PM

It sure is possible, but it's also, or even more, important to check if this would be the major product. After all, if another product is more favorable and this one ends up forming only 1% of the final product mixture, the reaction is pretty much useless.

So, take one step back: what sort of reaction occurs here? What are the possible product? Which "rules" exist for this case?

Title: Re: 2-Ethylhexanol with H2SO4
Post by: rolnor on June 29, 2020, 09:11:15 AM

This is a primary alcohol and elimination is more difficult, even secandary alcohols need 130° with H2SO4.
https://en.wikipedia.org/wiki/Elimination_reaction