I think it is 1-methoxy-3-methyl butene, like your first guess. (The C
group where the -0CH3 is attached only has 3 bonds in your picture. If
that was a mistake then it would be 1-methoxy-3-metheyl butane like you
said.) There is an example of this type of nomenclature on page 417.
On Thu, 5 Dec 1996, Scott Isenhath wrote:
> Hey people,
>
> Quick question about the naming of ethers:
>
>
> CH3CH(CH3)CH2CH-0CH3
>
> Is that 1-Methoxy-3methylbutane (3-methylbutylmethylether)?
> Or, instead of the second naming, would it be 2-Methylbutylmethylether?
>
> OR, am I completely off on the naming of the latter to ethers?
>
> Scott
>