[ninreznor]

I have a coumpound in my worksheet i'm trying to figure out but i can't seem to get my head around it.
this is how it appears in the book.

                O
                "
CH3CH2CH2C-H
           |
           CH2CH2CH3


hope you can understand that.
so what i thought is that because the carbonyl group doesn't appear at the end of the chain but has an hydrogen attached to the carbon atom then it is an aldehyde.
longest chain of carbons is 6 so hexan but if the carbonyl isn't on the cahin then it must be a hexane ring
so what i have is cyclohexancarbaldehyde?
is this anywhere near close?

[Hunter2]

No it is 2-Ethyl-pentanale. Longest chain has 5 carbon. But on the Second carbon is on hydrogen to much.

[billnotgatez]

@Hunter2
A GOOGLE search gives the possibilities
2 ethyl pentanoate   
ethyl 2 methylpentanoate   
2-ethyl-3- methylpentane

not
2-Ethyl-pentanale

And none of them appear to have just 1 oxygen

[Hunter2]

Here we go: http://www.chemspider.com/Chemical-Structure.81914.html

[ninreznor]

Sorry i got the formula wrong it's

            O
             "
CH3CH2CC-H
           |
           CH2CH2CH3

The only thing i can't understand is the -CHO group.
at first i thought it was 2-(1-methylethyl) butanal, but i keep coming up with different names and i'm not sure where to start the chain.

[Hunter2]

              O
              "
CH3CH2CHC-H
           |
           CH2CH2CH3

That is the longest chain.

[billnotgatez]

I tried this in SMILES
it does not quite look like the one on
http://www.chemspider.com/Chemical-Structure.81914.html

but it is very similar

[Hunter2]

What means similar.

It is the same compound.

[billnotgatez]

The 5 carbon backbone is not the same shape
the oxygen faces a different direction

but you are right baring the look it appears to be the same
This is my first post in SMILES

[Borek]

The 5 carbon backbone is not the same shape
the oxygen faces a different direction

You have to remember single bonds are not stiff, they rotate.