Q7D. 2011 Winter Final

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Daniel Hsiao_1L
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Joined: Fri Sep 25, 2015 3:00 am

Q7D. 2011 Winter Final

Postby Daniel Hsiao_1L » Sat Mar 12, 2016 3:46 am

For Q7D on the 2011 Winter Final exam, it asks to sketch a line structure for 2-methoxy-2-methylpropane

The answers seemed to draw their line structure as a test or a 2-methoxy-1,1 dimethyl ethane instead of a 2-methoxy-2-methylpropane.

Can someone confirm how the answer came up with its shape? Thank you!

bgarcia2B
Posts: 11
Joined: Fri Sep 25, 2015 3:00 am

Re: Q7D. 2011 Winter Final

Postby bgarcia2B » Sat Mar 12, 2016 4:13 am

The figure drawn is 2-methoxy-2 methylpropane not 2-methoxy-1,1 dimethyl ethane
Propane, the longest parent chain, is made by the carbon that is completely vertical and the lower left carbon.
Methoxy is an oxygen with two carbons attached to it. (C-O-C) which is show to the right of the propane.
Then methyl is shown to the left of propane.
This being, the second carbon is the meeting point of methyl and methoxy, making it 2-methoxy-2-methylpropane.
I don't really understand how you were able to put two methyls on a first carbon, but do you understand my reasoning?


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