Organic Chemistry / Newman Projections to Bondline Structures
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Solution: Assign IUPAC names for each of the following compounds: ...

Question

Assign IUPAC names for each of the following compounds:

Video Transcript

Alright guys. So, for this question, we want to convert this Newman projection into an IUPAC name. Now, the best way to do this is to convert this into a structure such as bond line that were used to naming, right? So let's say, we have this compound here, we can expand it a little and what you'll notice is that it's a Newman projection but it actually has some extra carbons involved and that is because this is actually a ring, right? So if this wasn't a ring, we wouldn't have this whole group right here, right? That indicates that we have a ring, so what we can do is just start counting how many carbons we have, so we know how big our ring is. Now, we're going to start where a substituent is and get that r1. Now, that's the carbon in the front but what about the carbon in the back, right? That's r2, it's connected to carbon 3, 4 and then 5. So, how big do you think our ring is? five membered ring, right? So, here's our five membered ring, looks something like this, we can go ahead and start naming these, we have a carbon 1, 2, 3, 4 and 5. Now, are we missing anything? Well, look at the substituent here. Notice that this is a CH3, so let's go ahead and draw it in a CH3 as such and now we've converted this into a bond line which you guys are lot familiar with naming, right? So what's the name of this? Well, it's five carbons and it's the ring, so you should expect cyclopentane, right? there's no double bonds nothing else to worry about except, what are we missing? that substituent guys, so what this becomes is just your methyl cyclopentane. Alright, so hopefully you realize this in the step by step process, the first step was looking at this newman, counting the number of carbons, we notices there was 5 and it was a ring, so we drew our five membered ring add in our substituent and then finally we named it. Alright guys? Well, hopefully this makes sense and now let's take a look at your next question.