00:01
Hello students, hope you are doing great.
00:03
In this question, we will see the mechanism for the formation of imine between ortho -vanillin and para -toluidin.
00:10
So in the first step, vanillin will react with acid, here we have oh, here we have och3.
00:25
In the first step, protonation takes place, this lone pair of oxygen will take a proton from here, so here we have oh, this oxygen has a positive charge over here, here we have oh and here we have och3.
00:41
In the next step, this reacts with para -toluidin, here we have nh2 and here we have och3.
00:50
This lone pair of the nitrogen will attack on this carbonyl carbon, this pi electrons will move to oxygen and the positive charge of the carbonyl carbon is stabilized.
01:01
So the product we have here is oh, here we have h, h, here we have och3, oh and the och3, these groups remain as it is.
01:18
Now in the next step, the same amine, same para -toluidin will take a proton from here, this nitrogen is having a positive charge over here, so this electrons is taken by nitrogen and the positive charge of the nitrogen is stabilized.
01:34
So the final product, so the product we have here is like this, here we have the benzene ring, oh, och3 group stays as it is, here we have oh, nh and here we have the para -toluidin part, och3...