0:00
Okay.
00:02
We have r1 -bromo -2 -methalbutane.
00:14
So what does this look like? r -1 -bromo, 2 -methylbutane.
00:19
So, butane is four carbons.
00:22
1 -2 -3 -4.
00:23
We know on carbon 1, we have a bromine.
00:26
We know on carbon 2, we have a methyl.
00:29
We're also told some stereochemical information.
00:32
We're told that this is an r.
00:35
Compound, well, that's got to be talking about this two methyl here because carbon one is not a stereo center.
00:45
It has two bonds to hydrogen, and you need to have four unique bonds on your carbon to be a stereo center.
00:52
Now, carbon two with its methyl group, would have a methyl group in ethyl and then a methyl bromo and a hydrogen.
01:01
So carbon two is our stereo center, and that is what is r.
01:05
So we need to determine whether this should be a wedge to methyl or a dash to methyl...