00:01
Okay, so we're going to explain why the following do not undergo glazing condensation.
00:05
And in the first one, we have ethylbenzoate.
00:14
So if we react this with sodium athoxid, it's going to depotinate the alpha hydrogen, but we don't have any alpha hydrogens on the structure, so no reaction will occur.
00:25
So remember, the alpha hydrogen is on the carbon adjacent to the carbonyl, and here we're in ester, so nothing will happen.
00:33
And in the second one, we have two methyl -ethyl -benzoate.
00:39
You know it.
00:46
So we need to lose two alpha -hydrogens for the reaction to occur because in the four step, the the athoxide, the ester that's going to leave, is very basic and needs a proton to regenerate itself.
01:02
So if we draw up the mechanism, again, reacting with sodium -thoxid, it's going to depertainate the alpha -hydrogen.
01:12
So we'll get a carbana on right there.
01:17
And this is going to react with another structure...