Nomenclature, giving priority to double bond

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Nomenclature, giving priority to double bond

Postby Chem_Mod » Tue Aug 30, 2011 12:34 am

Why would it be incorrect to name 3,4-dimethyl-2-pentene as 2,3-dimethyl 3-pentene?

Chem_Mod
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Re: Nomenclature, giving priority to double bond

Postby Chem_Mod » Tue Aug 30, 2011 12:35 am

Because in alkenes, the double bonded carbon determines the numbering (the double bond gets the lowest number), since 3,4-dimethyl-2-pentene gives a lower number for the double bonded carbon instead of 2,3-dimethyl-3-pentene, the first answer is correct.


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