C. Draw the skeletal structure and give the IUPAC name for...

C. Draw the skeletal structure and give the IUPAC name for each compound. (1 pt each) Condensed Structure Skeletal Structure IUPAC Name D. Give the structure corresponding to each IUPAC name. (1 pt each) 3-ethyl-3-methyloctane 2,3,4,5-tetramethyldecane E. Draw three constitutional isomers having a molecular formula C7H14 that contains a five-membered ring and two methyl groups bonded to that ring.

Transcript

00:01 Okay, so nothing in part c can actually be seen.

00:03 That's all too small, and i can't actually see what the condensed structure is, so i have no way of giving the skeletal structure in iupact name.

00:11 However, parts d and e are possible, so i'll start there.

00:16 First, we're given three ethyl, three methyl -octane.

00:20 Well, i like to start at the back, right? so three -ethyl, three -methyl, which should be a dashed there, methyl octane.

00:32 So i say, hey, octane, i know how to draw that.

00:36 That's an eight carbon chain.

00:38 So two, three, four, five, six, seven, eight.

00:42 Then i know on carbon three, which when we're starting out, we can just arbitrarily assign.

00:48 I could also put it over here.

00:50 It won't matter.

00:51 So long as this name is correct, it should not make a difference where i decide carbon three to be.

00:57 So i'm picking it to be the one on the left.

00:59 But that's, doesn't really matter.

01:01 And i say three ethyl.

01:02 I know how to draw that.

01:04 That's an ethyl group coming off of carbon three.

01:06 And that's going to be a two carbon chain.

01:08 So one, two.

01:09 Great.

01:09 I have an ethyl group on carbon three.

01:12 And now i'm going to look at this three methyl, and i know there's also a methyl group on carbon three.

01:18 And since i've already decided that that's carbon three, we have to stick with that now.

01:22 And i draw a methyl group.

01:24 And that is three ethyl three methyl octane.

01:27 Okay, moving on, we have two.

01:30 Two, three, four, five, tetramethyl decane.

01:41 Once again, i look at the block, i say decane.

01:44 Okay, that's a 10 carbon chain.

01:46 So two, three, four, five, six, seven, eight, nine, ten.

01:50 And i can once again, arbitrarily pick one of these carbons to be carbon two.

01:55 I pick the left hand side.

01:57 And i need to put something at two, three, four, and five, and it's, one of these four metals pointed out in tetramethyl.

02:07 So in carbon two, there's a methyl.

02:09 On carbon three, there's a methyl.

02:10 On carbon four, there's a methyl...

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