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Solution: Name each of the following compounds according to substituti...

Question

Name each of the following compounds according to substitutive IUPAC nomenclature: 

Video Transcript

Hey everyone. So, to name this problem, we need to go through a series of steps. Now, in order to figure out what the longest parent chain is we actually have to look at the position of our substituents. So, in blue we can go 1, 2, 3, 4, 5, 6, so we get substituents at 2, 3 and 5. Now, if we go down the route and start numbering here we get 1, 2, 3, 4 and 5. So, our substituents on this one would be at 2, at 4 and at 5, so we compare the two, we have 2,4,5 verse in the blue 2,3,5. So, notice that we get a lower substituent, would give us substituent a lower number and blue route. So, which one you think we should go? the blue route, okay? So let's erase the red because it gives a substituent the lower number going to this route in blue, you can go ahead and start naming. Now, 6 carbons mean, this is going to be, what? is it going to be hexane or heptane? hexane, is 6 carbons. So, it's going to be hexane then we need to name our substituents, we have a 2,3-dimethyl versus a 5-bromo. so, which one wins? we look at our M verse our B, B is going to win, so we start out with 5 bromo, next is going to be dash 2,3-dimethyl and then finally hexane. So, just remember that when we're labeling substituents we have to be very careful by looking at the numbers and the priority, we compare the route in blue instance our second substituent came at position three, first position 4, we went with the blue route and then also we have to be aware of alphabetic when naming, so keep both of those in mind and remember how we write our name, we start out with bromo and then move on to our dimethyl. Alright, I hope that makes sense and let me know if you have any questions.