00:02
Solving problem 1 of chapter 15.
00:06
Tell whether the following compounds are orth, meta or parasubstituted.
00:14
So first of all, let's start drawing a general benzene ring.
00:26
Okay, double bonds.
00:29
Okay.
00:31
So now if we say that, for example, the first substituent is on this carbon, let's call a group.
00:38
One and then we need to add a second substitute substitute on one of the of the other five carbon atoms for example if the substituency is in this position so on the carbon next to the first one then this one is going to be called orth position okay if the substituent is on this carbon so there's let's say one empty carbon in the middle between group 1 and group 2 then we have meta okay finally if the second substituent is on the carbon opposed to the one connected to the first substituent this is going to be called and of course the same is valid for these two positions.
01:47
So this position is going to be called ortho and this position is going to be called meta.
01:52
So if we start from the first molecule, we have a benzene ring and we have the first group on this carbon, a chlorine, and a methyl in this position.
02:16
So basically we have one empty carbon in the middle and then the two groups.
02:24
So group one, one empty carbon in the middle and group two...