One of many ways to make amines. Watch this video to find out the mechanism involved, why excess ammonia is needed and why this reaction may not produce a pure product you may want
Hi mate, hope you're good. My chem teacher was sacked about 3 weeks before the exam, you've been a great help, exam tomorrow, gonna smash it because of you, love you boss x
Hi, thank you so much for your explanation! But if it’s really uncertain as to what amine you’ll get (primary, secondary etc) then why do chemists bother with this method? Is there a way to stop to reaction going further to prevent them becoming larger? Thanks!
Add excess ammonia also to prevent the primary amine produced from reacting with any remaining haloalkane - the amine would still have a lone pair of electrons of the nitrogen so it could react with the haloalkane to make a secondary and tertiary amine. To get a pure product of primary amine, add excess ammonia to make sure only it reacts with the haloalkane and produces the primary amine in high amounts. Hope this helps, I mean your comment was 2 years old but hey ho.
Right, when I look at my textbook, it states that when a Haloalkane reacts with NH3, it forms an ammonium salt. E.g. CH3Cl + NH3 --> CH3NH3^+Cl- Which is Methyl Ammonium Chloride and then add NaOH to get the primary amine but the end products of the mechanism explained doesnt give you that? Why?
Sir, I am struggling with chemistry especially organic. I cannot revise as much as the required for A level. In As I got C , 2 marks away from B and I am not happy with it. Do you have any tips I can follow to improve my grades? Please Help !
I read that excess means “The excess reactant is the reactant in a chemical reaction with a greater amount than necessary to react completely with the limiting reactant.” Please clarify! Thank you
You definitely could do that, that would produce the amine, water and depending on the haloalkane, a product. If it was a Chloroalkane, it would produce sodium chloride.
Hi mate, hope you're good. My chem teacher was sacked about 3 weeks before the exam, you've been a great help, exam tomorrow, gonna smash it because of you, love you boss x
💀💀💀
why did they get sacked
Been using lots of your videos lately and they've really helped me, thanks for taking the time to properly explain things.
one of the best chemistry teachers
U don’t know how much of a help u are ❤️❤️❤️❤️
This was such a useful video! Thank you!
Thanks Chris
You are amazing
Awesome video man
SOOOO useful !!!
THANK YOU SO MUCH :)
thanks you sir.
5:43 Naaaah the skeleton😭🤣😂
You're the best at explaining things!🙏
I appreciate that!
are you going to do the DNA section for AQA or are you just focusing on the end of year revision videos?
Hi, this is very helpful however in the textbook i have they use NaOH to get the amine instead of using another ammonia. Why is this the case?
is this apart of Aqa spec because i didn't see it in your A2 organic AQA playlist
Hi, very helpful video. Is this from the AS or A2 spec?
Mainly A2 for most boards. Worth checking your spec to double check though.
I love you!
Thanks!
Would it be acceptable in the exam to leave the final products as CH3NH2 + NH3 + HBr. ? Thanks.
Hi, thank you so much for your explanation! But if it’s really uncertain as to what amine you’ll get (primary, secondary etc) then why do chemists bother with this method? Is there a way to stop to reaction going further to prevent them becoming larger? Thanks!
Add excess ammonia also to prevent the primary amine produced from reacting with any remaining haloalkane - the amine would still have a lone pair of electrons of the nitrogen so it could react with the haloalkane to make a secondary and tertiary amine. To get a pure product of primary amine, add excess ammonia to make sure only it reacts with the haloalkane and produces the primary amine in high amounts. Hope this helps, I mean your comment was 2 years old but hey ho.
How do effects on the reaction conditions affect products?
Right, when I look at my textbook, it states that when a Haloalkane reacts with NH3, it forms an ammonium salt.
E.g. CH3Cl + NH3 --> CH3NH3^+Cl- Which is Methyl Ammonium Chloride and then add NaOH to get the primary amine but the end products of the mechanism explained doesnt give you that? Why?
He didn't add Sodium hydroxide, he used ammonia as the base ... there are several ways to go about it I believe.
Sir, I am struggling with chemistry especially organic. I cannot revise as much as the required for A level. In As I got C , 2 marks away from B and I am not happy with it. Do you have any tips I can follow to improve my grades? Please Help !
I read that excess means “The excess reactant is the reactant in a chemical reaction with a greater amount than necessary to react completely with the limiting reactant.” Please clarify! Thank you
How would it differ if you want to make 2°/3° Amines?
What if we have 2 halogen in the haloalkane? What will be the product?
can it also make an amine + HBr instead of an ammonium salt?
What would you need to get a quaternary ammonium salt; excess ammonia or excess haloalkane?
Probably both tbh
Can you not use another base to do the same thing? So instead of more ammonia have NaOH to accept a proton from the methyl ammonium
You definitely could do that, that would produce the amine, water and depending on the haloalkane, a product. If it was a Chloroalkane, it would produce sodium chloride.
3:17 why do we draw an intermediate
i think its because ch3nh3 is not stable, therefore it doesn't exist for a long period of time its simply in between two steps of ch3Br--->ch3nh2.
Yeet