Chapter 2 #35 and #44

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Ethan_Wilson_1E
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Joined: Wed Sep 21, 2016 2:55 pm

Chapter 2 #35 and #44

Postby Ethan_Wilson_1E » Sat Mar 18, 2017 11:32 am

In chapter 2 of the Introduction to Organic Chemistry book, the answer to #35 is N-methyl-N-ethylpropan-1-amine. The answer to #44 is N-N-diethylpropanamine. Why is it that the 1 is excluded from the answer to number 44, even though both structures have two substituents and a three carbon chain?

david_li3H
Posts: 16
Joined: Wed Sep 21, 2016 2:56 pm

Re: Chapter 2 #35 and #44

Postby david_li3H » Sat Mar 18, 2017 1:26 pm

I believe that the one is extra information aka the one could be on both molecules or none.

Josh Ku 3H
Posts: 25
Joined: Wed Sep 21, 2016 2:59 pm

Re: Chapter 2 #35 and #44

Postby Josh Ku 3H » Sat Mar 18, 2017 1:38 pm

To my understanding, I believe that the one is just there to help you picture the molecule better. Without the one, it just implies that the amine is attached to the first carbon. I think the one comes more into use when you have multiple amine groups so you would have something like Butane-1,4-diamine, which won't be on the test. But overall, it's not wrong to put the one there so I think to be safe you could always just put it there.

Hope this helps


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