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Video Solution: Give the IUPAC name for each of the following compounds: ...

Problem

Give the IUPAC name for each of the following compounds:

Video Transcript

Hey everyone. So, here is our bond line structure and what we're going to do is we need to figure out what is the IUPAC name, so the way we do that is, what should we do first? we're going to do it in an orderly fashion. First it's going to be important to figure out what the root is such as hexane heptane octane, what do you think? Well, we're going to start labeling our structure either over here or over here, which one do you think would be better? Well, let's keep going. Notice that if it goes green we are running at 2, 3, 4, 5, 6, 7 and we have a substituent at 3 and 5, so the green route if we did that route would be 2, 3, 4, 5, 6, 7 you guys see some symmetry here? yeah, right? Because our substituents no matter which way we go are at 3 and 5, so what does that mean for us? it means you can label it whichever way we want, right? So we know it's going to be seven carbons long, so what that means is this is going to be heptane, right? It's just a regular alkane chain, no double bond or triple bonds but now we need to indicate that we have two substituents at carbons 3 and 5, so we're going to call this 3,5 and what do you think? how do we label those methyl groups? do we label them individually as 3 methyl 5 methyl? No, we're going to label this as a dimethyl, okay? Because it's the same substituent, then we indicate 3 it comes before 5 and then dimethyl, right after and then all we need to do to complete this is everything copy what we have here right in front of this, okay? So, in our complete IUPAC name is going to be 3,5-dimethyl and this so you guys know, in case anyone's wondering, this is CH3 and CH3 as our substituents, right? So let's highlight those substituents that we have, this one and this one and then we just include that route. So, heptane, okay? So this is our complete IUPAC name now, remember that the comma will separate our numbers and the dash will separate our numbers from our word but here we don't need to indicate that, we just indicate that as one ring right there. So, 3,5-dimethyl heptane. Alright, so I hope this makes sense, let's take a look at our next question, okay?

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