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Video Solution: Write a structural formula for each of the following compoun...

Problem

Write a structural formula for each of the following compounds:

(d) sec -Butylcycloheptane 

Video Transcript

Hey everyone. So, in this question is our job to draw the correct structural formula for our sec butyl cycloheptane, so we have two different parts, we have the second butyl group substituent but then we also have our cycloheptane. Alright, so hopefully you at least know what a cycloheptane looks like we can break it down. So, heptane is how many carbons? seven, and then it has cyclo in front, so what does that mean? it means that there is a ring in our structure, so hopefully you have some experience drawing 7 membered rings, because they could be a little bit tricky but what they look like is we have these groups going up, we're going to make a triangle here and we should actually make this go a little bit to the side, then we're going to go down and round it off like that, let's see what we have 1, 2, 3, 4, we drew a little bit too many so let me just make it a little bit this, make it seven carbons. So, here we have something that looks. Now, that's our seven carbons, which is 3, 4, 5, 6 and 7 and all we need to do is anywhere anywhere we want we're going to add on a sec butyl group. So, do you remember sec butyl looks like? it's going to be a CH3 group, a CH group a CH2, CH3, this is going to be attached just like that, so let's say we take right here and draw it, we're going to have a CH3 and then we have a CH2, CH3 and this is going to represent your sec-butyl substituents, okay? And this is actually, what that structural form looks like for a sec butyl cyclo heptane, we have seven carbons and we pick anywhere we want to label that pick to add an sec-butyl group, okay? So I just have a number like this but it was a number as you just had a regular cyclohexane ring you can essentially add on a sec-butyl group anywhere you want and that will automatically become the one position because there's no other substituents or double bonds, okay? So I hope this made sense, let me know if you have any questions on how we do our sec-butyl cyclo heptane.

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