Destroyer OChem #29

[ToZanarkand]

Advertisement - Members don't see this ad

Would someone please explain why the answer is b not a? I don't see it. Thank you so much.

 

[RCT PC CRN]

Would someone please explain why the answer is b not a? I don't see it. Thank you so much.

I hope this help.

Key here is to recognize Amine and Amide.

Primary Amine act as Nu and attact C=O and yield C=NR (imine)
Secondary Amine yield C=C-NR2 (Enamines)
Tertiary Amide won't react cause it doens't have proton.

Amide doesn't react the way amine react with C=O.

Just a thought, If Amide had to react with C=O, Amide wouldn't have exists at first place cause Amide has C=O group and it would have been intramolecular reaction and we won't see Amide.

Anyways, A is Amide and B is Amine. So the answer is B. C,D,E are there to distract.

If you are still confused I would suggest to look up mechanism.

 

[ToZanarkand]

I hope this help.

Key here is to recognize Amine and Amide.

Primary Amine act as Nu and attact C=O and yield C=NR (imine)
Secondary Amine yield C=C-NR2 (Enamines)
Tertiary Amide won't react cause it doens't have proton.

Amide doesn't react the way amine react with C=O.

Just a thought, If Amide had to react with C=O, Amide wouldn't have exists at first place cause Amide has C=O group and it would have been intramolecular reaction and we won't see Amide.

Anyways, A is Amide and B is Amine. So the answer is B. C,D,E are there to distract.

If you are still confused I would suggest to look up mechanism.

Thank you so much. Now, everything is clear. Thank you again.🙂

 

[feri]

Ok I have Destroyer version 2009!!! is it different to 2010version!? Do I need to buy that...#29 in my book is about the position of Br2 and light OR NBS...

 

[ToZanarkand]

Ok I have Destroyer version 2009!!! is it different to 2010version!? Do I need to buy that...#29 in my book is about the position of Br2 and light OR NBS...

I think it will be fine.