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Name:_2. A student incorrectly named a molecule "cis-2-isopropyl-4-methyl-5-ethyl-4-heptene" Draw the structure of the molecule based on this student'...

Question

Name:_2. A student incorrectly named a molecule "cis-2-isopropyl-4-methyl-5-ethyl-4-heptene" Draw the structure of the molecule based on this student's attempt. Provide the correct IUPAC name and provide two reasons why the name was wrong: (4 points)

Name:_ 2. A student incorrectly named a molecule "cis-2-isopropyl-4-methyl-5-ethyl-4-heptene" Draw the structure of the molecule based on this student's attempt. Provide the correct IUPAC name and provide two reasons why the name was wrong: (4 points)



Answers

Explain why each name is incorrect and then write a correct name. Strategy: First draw the structural formula suggested by the incorrect name. Then identify the error, for example, failure to locate the longest chain that contains the alkene functional group, etc., and then write the correct name. (a) $1-$ Methylpropene (b) $3-$ Pentene (c) $2-$ Methylcyclohexene (d) 3,3 -Dimethylpentene (e) $4-$ Hexyne (f) 2-Isopropyl-2-butene

In this problem all the way you pick name here, given in the options are correct except in this compound, which I am writing here. So just look at it carefully. Here it is double one here it is Oh, package and in this side it is M. E. And in them. Given here, each to metal to metal psychlo banned for in one. All this is incorrect. Are you back them? Yeah. So according to the option in this problem, all the options have the character you pick name except to be so the B age, correct answer.

This question gives us some compound names and assets started to identify the ones that are named incorrectly and correct them. So I think the easiest way to do is to draw out each of these and then, uh, take a look at the name So four fl to pen time. So we have one two Penn tiene three four has an ethical sighs groups that should be free. So we look at this. The longest chain actually isn't five. It's six like this. So this should be 1234 metal, um, to hack sign B is one bro mo for hep time. So if we draw that out one, this has a browning on it. Teoh 34 has our O'Kane. That's five, six, seven. Um So if we look at this one, we want the out kind to be the lowest number that can that takes precedence over the bro. Mean? So in that case, we actually want a number. From this direction will be 1234567 So this would be seven, bro mo three. Have time to make it correct for See, we have to metal three. Heck, sign. So one two has a methyl group three is are all kind of four 56 So for this one, this is a symmetric here. If we ignore the metal group, it's a symmetrical l kind. So Thea kind is on number three, no matter which way we go from that. So in that case, we do want the metal to be the lower number that it can be. So this one is correct. Um, and then for D three pen tiene so one, 234 five Um, So again, we want all kinds been lowest number that it can be. And here it is not. This would actually be one too who went from the other side. This should be called to Penn tiene.

For this pleasure, we're gonna figure out which of these molecules are missing, and then we'll get a draw. So I think we should just draw the structure to figure out their mistakes. So for this first, we'll move a few team to beauty. It's gonna hassle him somewhere. This is a job you teen so or carbons. And to beauty means a double bond between the second set of, uh, Carmen. Carmen, This one and we have to Ethel to beauty. Which means on this you teen second carbon as ch juice. Uh, and now we can just start filling in with my jeans. Are so so we look at the structure with now draws. We said the longest parent chain, which contains the Al Keane, is 123 or actually five. So this should be beauty mean issue when we won't be petty. So 18 um and it's got a metal roof here on the third. So this is going to be so it's still gonna be to painting, because if we look at starting from this end, we can't, um, the missing ships. Carmen Carmen L. A. What is that? It's the second time in first this would've been the first carbon carbon bond. And this is now the second car. So it's 2 19 And this method was all actually the three position. So it's going to be three months. Two Next one is 14 diamond Whole cycle Taxi. So you draw that out. This we haven't specified where that all keen Isolde is calling you. So it's just one my fault. And then we have a Series three group on one position. 1234 witnesses. Now look at the structure we actually see the name isn't back. Correct. So the coming world structure, this is in fact, 14 diamonds plus one. So gonna drop benzene It don't circle your show at Memphis City. And so we're gonna say it's one stage here 15 times. So this is one 234 Bye. Yeah, this is 15 minutes of benzene. But when we look at it and we see that we can actually make the numbering a little bit easier, right? You want the smallest number is possible. So we think about it. This could still be one that makes this too. And this three, So it should be 15 month ban Xena issue just 813

Here. We're told that, uh, destruction the name for the structure for Ethel to three die, I scribble. Plantain is an incorrect name. So we're going to draw the name and you'd be correct. Systematic name. So plantain is five carbon. So 12345 We have four, Ethel. So I'm just going to start from the side and say, this is 123454 Ethel looks like that. And then 23 die isopropyl. So when isopropyl group looks like this, let's to Herman to And carbon three. So the same is incorrect on. And so what? We know this because the parent chain here is paint ain't But that is not the longest chain. So the parent chain has to be the longest possible carbon chain. So it's true. The Senate different color. So the longest chain would be, um, here we have two carbons coming off carbon two instead of one. So that'll be longer. And then we have two carbons coming off of carbon four except instead of one. So we'll start over here, will say 1234567 is our longest chain. Um, and the reason I started numbering on this side instead of on this side is because we have a situation carbon to here. But it would have been one to the re over here. So you want this constituents to be the lowest numbers possible. So now I'm going, Teoh, right out all of my substitue INTs. So we know that we have obtain and then we have a metal at two. So too metal. We also have metal at three, um, and a metal at five. And then we have a nice purple group at four. So now we'll put that all together going in alphabetical order. We'll start with the isopropyl group. So for I thought pro ball and then we'll group all of the metal groups together, so we have to three and five would indicate the carbon that each one is on. So 235 and then there is a total of three methyl groups. We have indicate that as well. The prefix. So that will be a tri metal. And then our parents chain is half obtain. So the correct name for this compound is four isopropyl 235 tri methyl heh, 15


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