10.3 Allylic and Benzylic Bromination with NBS | Organic Chemistry
In this lesson Chad summarizes allylic and benzylic bromination with NBS. He begins by showing how to predict the products of NBS bromination reactions, and how that when brominating either the allylic or benzylic carbon NBS should be used preferentially over Br2 to avoid side products. He then presents the structure of NBS and the complete mechanism with arrow-pushing for NBS allylic bromination including the initiation, propagation, and termination steps.
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00:00 Lesson Introduction
00:36 Summary of Allylic / Benzylic Bromination with NBS
05:31 NBS Allylic Bromination Mechanism
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Thanks for your kind words, DOTK - glad you found the channel!
God bless you man! Your channel is a channel of blessings for me. Thank you!
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Glad to hear it, Isa - glad you found us!
Hey Chad, love the shirt! Question: where is the Br2 coming from at 8:03? Is it forming from another initiation step? Thanks in advance.
Which one is the major product for the reaction of but-2-ene and NBS?
at 4:27 which one will be the major product? im guessing the secondary bromine and its enantiomer is the major product because the secondary radical is the major resonance contributor.
Chad, thank you so much for your videos this year! You've literally saved me from so much confusion.
@ChadsPrep
3 жыл бұрын
Glad to hear it, Claire!
Amazing channel thank you for everything
@ChadsPrep
7 ай бұрын
You are most welcome.
Thank you..
@ChadsPrep
2 жыл бұрын
You're welcome!
i thought bromine/nbs got rid of the double bond?
@ChadsPrep
4 ай бұрын
At what time in the video?
okay now draw the mechanism of Br2 formation from NBS and HBr