# Homework Help: Organic chem: draw this in line angle structure

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1. Sep 24, 2017

### alphaj

1. The problem statement, all variables and given/known data
Draw this formula in line angle structure. CH3CH2OC(O)CH2CC(CH2)3CH(CN)CHO.

2. Relevant equations
None.

3. The attempt at a solution
I'm confused with the CC(CH2)3 part of the condensed formula. I knew I got it wrong the first time I drew it because I couldn't just tag three methyl groups to carbon 7. The only way I think I can do that is by adding a cyclobutanyl group! But, I'm afraid that might be misrepresenting the given formula. I think a cyclobutanyl group included would have the condensed formula written as CH3CH2OC(O)CH2C(C(CH2)3)CH(CN)CHO.

2. Sep 24, 2017

### Staff: Mentor

(CH2)3 is just three -CH2- groups in line.

3. Sep 24, 2017

### Dr Transport

if memory serves me correctly, the $CC$ is actually $C=C$ and the $(CH_2)_3$ is
$CH_2CH_2CH_2$

4. Sep 24, 2017

### Staff: Mentor

Close, but no, it is not a double bond.

5. Sep 24, 2017

### Dr Transport

memory failed me.....

6. Sep 24, 2017

### alphaj

Thanks for your help! I think I got it now!

7. Sep 25, 2017

### Staff: Mentor

Yes, looks like you are right.

@Dr Transport - you were close, it was just $C\equiv C$, not $C=C$.

8. Sep 25, 2017

### Dr Transport

dorked by two hydrogens.....