Anti-Markovnikov Radical Halogenation of Alkenes
Leah4sci.com/Radical presents: Anti-Markovnikov Radical Halogenation of Alkenes
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In this video, you’ll learn how the radical halogenation of an alkene in the presence of peroxides differs from the typical hydrohalogenation alkene addition reaction. You’ll learn how to apply initiation and propagation steps of the radical mechanism, how to identify the most stable intermediate, and understand why the anti-Markovnikov product is favored.
You’ll also learn about the stereochemistry of alkene radical halogenation.
Links & Resources Mentioned In This Video:
Leah4sci.com/Alkene-Reactions Alkene Reaction Mechanisms
Leah4sci.com/Markovnikov Markovnikov’s Rule in Alkene Addition Reactions
Leah4sci.com/Carbocation Carbocation Stability and Ranking
In this video:
[0:25] Definition of Radical Halogenation (The “Light” Reaction)
[2:53] Initiation Step with Alkyl Peroxide
[3:54] Propagation Step
[4:55] Continuation of Propagation with Alkene
[5:32] Stability of the Radical Intermediate
[7:18] Formation of Final Product
[7:55] Stereochemistry of Reaction
Watch Next: Cyclopropanation of Alkenes • Cyclopropanation of Al...
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Пікірлер: 41
Your serie of videos of the alkenes are the best I could ever ask for, thank you for teaching me so much, Leah! Kisses from Brazil :)
@Leah4sci
Жыл бұрын
You're very welcome, happy to help!
Thank you for your videos,which are truly helpful to me .I’m a Chinese teenager,I am watching yours to solve my problems .I hope that you have been sharing your knowledge to make the world richer .If I have the grammar mistakes,please tell me.Thanks, coach.Your channel was， is and will be the best
@Leah4sci
2 жыл бұрын
You're very welcome, I am so happy to hear that my resources have helped you!
I was struggling with free radical mechanism and this video really helped me. Thank you ma'am !
@Leah4sci
4 ай бұрын
You're so very welcome, happy to help!
Majority of other never explain stereo configuration of product..brought down very simple and easy way,thankyou
@Leah4sci
2 жыл бұрын
Thank you for recognizing that. I used to be so overwhelmed because I was taught to memorize, and so I try to take that frustration away by showing you WHY. :)
I like how the pace is slower leaving more time for understanding
@Leah4sci
2 жыл бұрын
Glad you like it!
you and organic chemistry tutor are lifesavers
@Leah4sci
Жыл бұрын
Thanks so much! :)
Another great video!
@Leah4sci
2 жыл бұрын
Thank you!
This was sooooooo helpful, omg! 😢😊😊😊
@Leah4sci
7 ай бұрын
So glad it helped!
Great teacher!
@Leah4sci
Жыл бұрын
Thank you so much
your videos are amazing!!! thank you!
@Leah4sci
Жыл бұрын
you're so welcome
Thanks 🙏 so much for sharing good lecture for me❤️🙏
@Leah4sci
2 жыл бұрын
You're very welcome
Thank you for the lesson
@Leah4sci
2 жыл бұрын
You are very welcome
I'm wondering why did the reaction initiates with bromine not hydrogen?? Thank you is not enough...your videos really helped me
@Leah4sci
Жыл бұрын
You're so welcome! The oxide radical grabs the hydrogen from HBr to create a very stable alcohol molecule. (The alternative would be to bond the oxygen to the bromine, and that is not energetically favorable.) That leaves a bromine radical to initiate the radical halogenation. For help with questions like this and more, I recommend joining the organic chemistry study hall. Details: leah4sci.com/join or contact me through my website leah4sci.com/contact/
Your voice is the best
@Leah4sci
2 жыл бұрын
Thanks!
Thank u is not enough for u 💖💖💖💖💖💖💖💖💖💖💖💖💖
@Leah4sci
Жыл бұрын
I'm glad you like the videos! Thanks for watching.
So H should go on the most stable (substituted) carbon?
@Leah4sci
3 ай бұрын
Yes, you can think of it that way. The radical intermediate will form on the most substituted carbon of the pi bond after reaching for a bromine radical in solution. That leaves the more substituted position available for the H of the HBr reagent.
You should try solving organic chemistry of JEE Mains/Advanced it will surely boggle your mind.
@Leah4sci
2 жыл бұрын
I've heard it's tough, but many JEE students use my resources to help them as they prepare. Hope this helps you, too!
can you plz refer some tricks to learn periodic table ..
@Leah4sci
2 жыл бұрын
I have periodic table videos, did you see them yet? (search periodic table + leah4sci to find them)
@dragon-7511
2 жыл бұрын
@@Leah4sci yes.. I have seen them but I want some trick to learn the periodic table because I memorize I forgot 😭 the periodic table
@Leah4sci
2 жыл бұрын
Use this to help you memorize: leah4sci.com/memorize
Good morning mam
@Leah4sci
2 жыл бұрын
Good morning (actually good evening as it's midnight in NY)
@jiyahaq1675
2 жыл бұрын
@@Leah4sci OK good evening mam