Brominating the Allylic Position with NBS

[@ahlammohammed200]

Thank you so much you're nearly the only one on KZbin who explained that reaction that well ~

[@Badgerbahalwan]

Oh dam, homie came in with the 1,2 Floyd Mayweather & the KO Anderson silva kick combo 😂

[@l7okomabenzema571]

you are amazing my teacher to explain that mechanism ;he wrote a paper and i didn't understand it but you understood it easily i hope to get a good point in organic thanks joo from morocco 🤩

[@theyoten1613]

Yours is like the only video on this reaction I could find so thank you and papa bless.

[@douglasarcher58]

Love all your energy 😊! Keep up the great work 🌟

[@jOeCHEM]

Thanks, Douglas, for watching and the kind words 🤓. Make sure to check out joechem.io for FREE (yep, that's right) worksheets + solutions to go along with each video.

[@andreitanasa2068]

Is hbr a free radical initiator?

[@senny-]

Thank you!

[@reungkhongeya7244]

Love how you teach . Thank you

[@jOeCHEM]

Thank you so much, for watching and the kind words!

[@alexisjones419]

awesome video!

[@Technovore88]

Thank you!

[@ademcavus]

Thanks a lot :)

[@techboyzeeshan8582]

U explained really well !! But I have a question, What exactly hinders the production of bromine molecules when we use NBS?

[@jOeCHEM]

Hi tech boy Zeeshan! I'm not sure what you mean--NBS is our source of Br2, and the equilibrium established with NBS (and something like HBr) only creates a little bit of Br2. And that's a good thing, because with too much Br2, we end up doing the halogen addition across the double bond (the alkene reaction). However, with such a small source of Br2, it has a better chance to undergo homolytic cleavage and thus becoming a bromine radical.

[@Grak70]

This is actually a problem with NBS: it DOES slowly produce Br2 over time. Non-fresh NBS usually needs to be recrystallized before use for this reason.