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Question

Draw structures corresponding to the following IUPAC names: (a) Methyl pentanoate (b) Isopropyl 2-methylbutanoate (c) Cyclohexyl acetate

   Draw structures corresponding to the following IUPAC names:
(a) Methyl pentanoate
(b) Isopropyl 2-methylbutanoate
(c) Cyclohexyl acetate

Chemistry

John E. Mcmurry,… 6th Edition

Chapter 23, Problem 70

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Step 1

- Attach a methyl group (CH3) to the first carbon. - Attach an oxygen atom to the first carbon, indicating an ester functional group. - Fill in the remaining hydrogen atoms on each carbon atom. Show more…

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Transcript

00:02 All right, problem 70.

00:05 So we're still on drawing structures, and as you probably notice, all our molecules here has a suffix of 08, or i guess not for part c, but 08 means we're dealing with esters, right? okay, so let's go ahead and start.

00:30 Part a, we got methyl pentanoate, so pent, meaning we have five carbons so want to go ahead and draw five carbons first one two three four five and we have that 08 right got that 08 so meaning we have an ester going on here so we're putting our ester here as carbon 1.

01:00 So whenever you have an ester, the carbon connected to your oxygens would always be carbon number 1.

01:09 So our countings would be like so.

01:16 And we got methyl, methyl right here.

01:20 So for esters, whenever we have an alkyl group connected, we always connect that to our terminal oxygen right here.

01:31 So this is where our methyl would be.

01:34 Okay.

01:36 So all that's left for us to do here is to fill out those missing hydrogens, right? so carbon five is at the end so it could handle three hydrogens.

01:47 Okay.

01:48 And carbon four with vch2.

01:52 Same for carbon three and finally for carbon two as well.

01:57 So we got all our hydrogens now.

02:00 And you could go ahead and confirm by counting how many bonds you have on carbons, but i'll leave it right there.

02:11 Okay, so part b, part b, we got bute, butte, and o weight, meaning we have four carbons...