Alkene Reaction Mechanisms

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organic chemistry alkene reaction mechanism tutorial videosAlkene Reactions Series: Video 1
This introduction to organic chemistry alkene reactions tutorial is meant to serve as an introduction to the concept of alkene reaction mechanisms. Starting from the very foundation, learn what makes alkene electrons so reactive, as well as how to recognize a nucleophile and electrophile in orgo reactions.

You’ll also get a quick overview of alkene reaction mechanisms and carbocation intermediates.


(Watch on YouTube: Intro. Click cc on the bottom right for video transcription.)

–> Watch Next Video: Hydrohalogenation of Alkenes

This is Video 1 in the Alkene Reaction Mechanisms Video Series. Click HERE for the entire series.

Ready to test your skills? Try the Alkene Reactions Practice Quiz after watching the series!


  1. Leah, isn’t this the first video of the series?

  2. Leah, isn’t this the first video of this series ?

  3. Cheryl Ross says:

    You’re amazing! Thanks for your help and sharing knowledge in such a simple and easy to understand way 🙂

  4. elmin_moussa says:

    In this type of alkene reactivity we need to follow Markovnikov rule for substitution

  5. Leah, thanks for making these great videos!
    As I was watching this video, something that I had to pause and really think about was that you would describe the 2-butene’s double bond as “electron rich” (and therefore nucleophilic) especially since there valence electrons were tied up making the pi bond. The octet was satisfied and presumably in a stable state, so why the double bond need to “attack”? Does the double bond have a partial negative charge? I understand that pi bonds can break easily, but wouldn’t a force have to act upon the double bond in order for it to break and seek out the nucleophile?

    • Kate,
      You ask a great question, one that I explain in the first video of this series. Be sure to watch it and let me know if you’re still confused

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