# Neohexene

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> Markdown URL: https://mediated.wiki/source/Neohexene.md
> Source: https://en.wikipedia.org/wiki/Neohexene
> Source revision: 1345831574
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{{short description|1=Hydrocarbon compound ((CH3)3CCH=CH2)}}
{{Chembox
| ImageFile = 3,3-dimetylo-1-buten.svg
| ImageSize = 
| ImageAlt = 
| PIN = 3,3-Dimethylbut-1-ene
| OtherNames = 3,3-Dimethyl-1-butene
|Section1={{Chembox Identifiers
| CASNo = 558-37-2
| PubChem = 11210
| ChemSpiderID = 10737
| EC_number = 209-195-9
| UNII = 01ZB73D2KK
| InChI=1/C6H12/c1-5-6(2,3)4/h5H,1H2,2-4H
| InChIKey = PKXHXOTZMFCXSH-UHFFFAOYSA-N
| SMILES = CC(C)(C)C=C }}
|Section2={{Chembox Properties
| C=6|H=12 
| MolarMass =
| Appearance = colorless liquid
| Density = 0.685 g mL<sup>−1</sup>
| MeltingPt = 
| BoilingPtC = 41
| Solubility = }}
|Section3={{Chembox Hazards
| MainHazards = 
| FlashPt = 
| AutoignitionPt = }}
}}

'''Neohexene''' is the [hydrocarbon compound](/source/Hydrocarbon) with the [chemical formula](/source/chemical_formula) {{chem2|(CH3)3CCH\dCH2}}.  It is a colorless liquid, with properties similar to other [hexene](/source/hexene)s.  It is a precursor to commercial [synthetic musk](/source/synthetic_musk) perfumes.

==Preparation and reactions==
Neohexene is prepared by [ethenolysis](/source/ethenolysis) of [diisobutene](/source/diisobutene), an example of a [metathesis](/source/olefin_metathesis) reaction:<ref name = KO>{{cite encyclopedia|encyclopedia = [Kirk-Othmer Encyclopedia of Chemical Technology](/source/Kirk-Othmer_Encyclopedia_of_Chemical_Technology)|first1 = Lionel|last1 = Delaude|first2 = Alfred F.|last2 = Noels|year = 2005|title = Metathesis|doi = 10.1002/0471238961.metanoel.a01|place = Weinheim|publisher = [Wiley-VCH](/source/Wiley-VCH) | isbn=978-0-471-48494-3 }}</ref>

:(CH<sub>3</sub>)<sub>3</sub>C-CH=C(CH<sub>3</sub>)<sub>2</sub> + {{red|1=CH<sub>2</sub>=CH<sub>2</sub>}} → (CH<sub>3</sub>)<sub>3</sub>C-CH={{red|CH<sub>2</sub>}} + (CH<sub>3</sub>)<sub>2</sub>C={{red|CH<sub>2</sub>}}

It is a building block to synthetic musks by its reaction with [''p''-cymene](/source/Para-Cymene).  It is also used in the industrial preparation of [terbinafine](/source/terbinafine).<ref name = KO />

In the study of [C-H activation](/source/C-H_activation), neohexene is often used as a hydrogen acceptor.<ref>{{cite journal|last1 = Liu|first1 = Fuchen|last2 = Pak|first2 = Esther B.|last3 = Singh|first3 = Bharat|last4 = Jensen|first4 = Craig M.|last5 = Goldman|first5 = Alan S.|title = Dehydrogenation of ''n''-Alkanes Catalyzed by Iridium "Pincer" Complexes: Regioselective Formation of α-Olefins|journal = [J. Am. Chem. Soc.](/source/J._Am._Chem._Soc.)|year = 1999|volume = 121|issue = 16|pages = 4086–4087|doi = 10.1021/JA983460P | bibcode=1999JAChS.121.4086L }}</ref>

==References==
<references />

Category:Alkenes

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Adapted from the Wikipedia article [Neohexene](https://en.wikipedia.org/wiki/Neohexene) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Neohexene?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.