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Electrophilic Aromatic Substitution Study Guide Cheat Sheet

February 6, 2020 By Leah4sci 26 Comments

Electrophilic Aromatic Substitution reactions are one of the more fun topics that you will study in Organic Chemistry. But perhaps you find it tricky due to the sheer volume of information that makes up the big picture. And so, in addition to my EAS Tutorial Video Series I've put together a thorough EAS cheat sheet. Click the image for a high resolution copy, and print one each for your textbooks and notebooks.

The cheat sheet took a few hours to complete, and so I would appreciate if you click the social sharing buttons above to show your appreciation (assuming you find it helpful of course 😉

Enjoy

EAS Cheat Sheet Preview

Filed Under: Organic Chemistry Reference Material Tagged With: activating groups, aromatic, deactivating groups, EAS, electrophilic aromatic substitution, ortho meta para

Comments

  1. Safwat says

    October 1, 2018 at 7:22 pm

    “thank you” is the least of what you deserve ..your are brilliant

    Reply
  2. Kosen says

    June 2, 2018 at 5:31 pm

    Thanks a lot for sharing it.. I find it very helpful..

    Reply
  3. Mati ur rehman khan says

    May 15, 2018 at 8:15 pm

    Please ma’am send organic books…..
    matikhanniazi006@gmail.com

    Reply
  4. Bhargav hingu says

    January 18, 2018 at 3:33 am

    It is really helpful a I shared with my college buddy!!

    Reply
  5. Selen says

    November 29, 2017 at 1:29 pm

    thank you so much,greetings from turkey!!

    Reply
  6. Innocent Muwaya says

    November 17, 2017 at 10:15 am

    The moment I stumbled upon your first tutorial in orgo-1. I confess I always fail to use any other tutor, even class feels boring. You have been a savior to me and my friends throughout our orgo-courses. Thanks

    Reply
  7. AMLAN CHAUDHURI says

    April 20, 2017 at 11:46 am

    ALL THESE STUFF WAS REALLY HELPFUL 4 ME…THANK U..SHARE MORE LIKE THESE..

    Reply
  8. Lyne N says

    February 28, 2017 at 6:40 am

    thank you so much Leah.

    Reply
  9. isaac says

    January 25, 2017 at 2:33 am

    very useful. Thanks

    Reply
  10. Kristin says

    September 28, 2016 at 2:57 am

    Thanks so much! Any way to get this in a pdf?

    Reply
  11. Bianca says

    March 23, 2016 at 6:32 pm

    What does the O/M/P Monster say? Ch O-M-P!! I can’t get this out of my head now!

    Reply
    • Leah4sci says

      April 4, 2016 at 5:51 pm

      HAHAHA that’s awesome Bianca! Never thought of that!

      Reply
      • Innocent Muwaya says

        November 17, 2017 at 10:17 am

        Those are the things about your videos that always brings me back for more.

        Reply
  12. Gaurav BHAGWANANI says

    January 21, 2016 at 2:16 pm

    Its awesome and very helpful.. Thanks a lot.. Sharing it right away 🙂

    Reply
    • Leah4sci says

      September 2, 2016 at 11:37 am

      You’re welcome! I’m happy to help!

      Reply
  13. Nada Naveed says

    August 12, 2015 at 11:03 am

    Perfect! Thanks so much! I was pretty sure I was going to flunk my org test,this is a lifesaver!

    Reply
    • Leah4sci says

      August 13, 2015 at 2:45 pm

      awesome! glad to help you pass your exam. Good luck!

      Reply
  14. Nick says

    July 7, 2015 at 9:00 pm

    The two structures you show for the acylium cation ([RCO]+, used in the Friedel-Crafts acylation reaction) on the cheat sheet are not resonance structures. The R-C-O bond angle changes, and thus the hybridization of the C-atom, on the leftmost structure has changed between the two structures, and therefore the relationship between the two structures is not one of resonance (where only electrons move). The correct C=O resonance structure is linear, not bent as shown. You are also missing the two O-atom lone pairs on the leftmost structure.

    More importantly, the C=O resonance structure does not contribute in any meaningful way to the overall resonance hybrid of the acylium cation. By far the major contributor (>90{4de72ea05502f43f582be05109791d04c2e06ba4d55e604218cbe1ea315cd788}) is the resonance structure with a C-O triple bond and a formal positive charge on the O-atom (the structure you drew on the right). In fact, the C=O resonance structure is not even the 2nd most important resonance contributor! Many organic chem textbooks and online resources misrepresent the resonance structures of the acylium cation, so beware!

    Reply
  15. janet says

    July 6, 2015 at 12:17 am

    This really helps! I shared with my study buddies

    Reply
    • Leah4sci says

      July 7, 2015 at 12:31 pm

      Thank you for sharing Janet. Glad it’s helping. Are you in a summer orgo course?

      Reply
  16. Aayush Chaturvedi says

    January 31, 2015 at 12:02 pm

    Great sheet …..but please show me how to remove that sticker tupe of thing on top

    Reply
    • Leah4sci says

      February 2, 2015 at 12:40 pm

      If you mean the red title just click the image for the full cheat sheet

      Reply
  17. Pat Santos says

    January 5, 2015 at 3:26 am

    Amazing!!! THANKS FOR YOUR BIG HELP!!!! I will surely pass this subject because of you.

    Reply
    • Leah4sci says

      January 5, 2015 at 7:44 am

      Glad to hear that Pat. When is your exam?

      Reply
  18. Brittany says

    December 10, 2014 at 10:14 pm

    AMAZING!! It is missing some reactions, but still helpful

    Reply
    • Leah4sci says

      December 19, 2014 at 3:27 pm

      Thanks Brittany. I chose to focus on the most common reactions for this. Which additional reactions were you looking for?

      Reply

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