00:01
In this problem, we have a ring, and this has one, two, three, four, five, six, seven sides.
00:08
So it's a cyclo -heptene.
00:10
And we don't know how many stereocentors there are.
00:13
And by that may mean a carbon with four different groups.
00:23
So we're going to rule out these carbons because since there's no groups on them, we know there's two hydrogens each.
00:32
So they're not four different groups.
00:34
But if we start looking at this carbon here, we have a methyl group, a hydrogen.
00:41
You have this side of the ring and this side of the ring, which are different...