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Naming Branched Substituents – Tert-Butyl, Isopropyl, isobutyl, tertbutyl, and more

February 18, 2013 By Leah4sci 29 Comments

Nomenclature Branched Substituents isopropyl isobutyl tertbutyl Video Tutorial Orgo Leah FischNaming Organic Compounds Series: Video 4
This tutorial video shows you how to name organic compounds with substituents coming off their substituents. This includes the ‘long' version of naming each individual group, and the accepted abbreviations like tert-butyl and isopropyl.


(Watch on YouTube: Substituents. Click CC on bottom right for transcript.)

<– Watch Previous Video: Naming Branched Chain Alkanes
–> Watch Next Video: Naming Cycloalkanes and Bicyclo Alkanes

This is Video 4 in the Naming Organic Compounds Video Series. Click HERE for the entire series.

Need a review on Functional Groups? Watch the Functional Groups Video, Download the Cheat Sheet, then try the Quiz.

Filed Under: Nomenclature Tagged With: branched substituents, nomenclature

Comments

  1. gavri says

    June 19, 2018 at 10:10 pm

    You are a legend!!!

    Reply
  2. Rodolfo says

    June 9, 2018 at 9:41 pm

    Hi Leah, the videos help me so much, but I was ask to draw an isopentyl cation, isopentyl-2 butyl cation and a 2-methyl-2-butyl cation and rank them, and I’m so confused.
    I can tell that pent is 5 Carbon, yl is a sub and iso look like the Mercedes sing, but can’t drew it.

    Reply
  3. aiesha basha says

    October 7, 2016 at 10:31 pm

    Hi,

    can this also be called 5-isopropyl nonane?

    -thanks

    Reply
  4. Devin Alexander Ellis says

    September 18, 2016 at 12:31 am

    At 1:54 could you not name the methyl propyl branch isopropyl instead of 2-methylpropyl ?

    Reply
  5. Jen says

    October 14, 2015 at 12:57 am

    This video helped clarify my questions on the structures. Thank you!

    Reply
  6. Mazin Nasralla says

    May 8, 2015 at 10:44 am

    Regarding 4-(1-methylethyl)-octane couldn’t you drop the 1 as that’s the only place the methyl group can go? If in doubt is it always best to add a number?

    What do you use as reference? I went to IUPAC website but didn’t find it very useful.

    I like your videos. To the point.

    Reply
    • Leah4sci says

      May 12, 2015 at 10:19 pm

      I’ve seen it named without a number. I personally would keep the number to avoid any potential confusion

      Reply
  7. sanket says

    February 23, 2015 at 2:48 pm

    Much more interesting and understandable than a 4 roomed packed class.
    Thank u for this video, I was having a trouble in understanding this topic.
    Well now I am surely getting 6 marks in my finals..

    Reply
    • Leah4sci says

      February 25, 2015 at 11:30 pm

      glad I can help Sanket

      Reply
  8. Clarice says

    February 3, 2015 at 3:30 pm

    It’s not 4-(ethyl-1-methyl) because of the alphabetical rule?

    Reply
    • Leah4sci says

      February 4, 2015 at 3:27 pm

      Be careful Clarice. Ethyl is considered the parent of the branch and so is not alphabetized with the substituents ON the branch

      Reply
  9. SyahirahShaff says

    December 22, 2014 at 7:45 am

    thank you for a very clear info from you. most appreciated:)

    Reply
    • Leah4sci says

      December 22, 2014 at 4:43 pm

      You are very welcome SyahirahShaff

      Reply
  10. monica nguyen says

    October 14, 2014 at 9:03 pm

    Thank you for being awesome! Seriously saving my life and making this process towards medical school a little more smoothly. So very very grateful to have run cross you on youtube!

    Reply
    • Leah4sci says

      October 22, 2014 at 10:43 am

      Thank you Monica! glad I can help. Are you in orgo right now?

      Reply
      • tim says

        September 9, 2018 at 1:29 pm

        I am in orgo right now, there is so much to learn and I am only on the alkane hydrocarbons ๐Ÿ™

        Reply
  11. Ali says

    August 24, 2014 at 2:32 am

    Thank you! I love you ๐Ÿ™‚

    Reply
  12. Oumou LaBelle says

    May 20, 2014 at 7:21 pm

    You are the best !!! short, simple and to the point

    Reply
    • Leah4sci says

      May 22, 2014 at 5:06 pm

      Thank you, what are you studying right now?

      Reply
  13. sophie says

    January 29, 2014 at 8:32 pm

    Please, do not stop doing what you’re doing. It’s obvious that you love this thing. Your method of teaching is amazing and your help so precious. Your voice is nice too! Thank you thank you thank you ๐Ÿ™‚

    Reply
    • Leah4sci says

      January 29, 2014 at 11:15 pm

      Thank you for those kind words Sophie, and you’re right I do love what I do ๐Ÿ™‚

      Reply
  14. ASMA OBAID says

    January 18, 2014 at 10:38 pm

    Thank you sooooo much It is amazing .

    Reply
    • Leah4sci says

      January 19, 2014 at 6:56 pm

      You are very welcome

      Reply
  15. rhea says

    January 16, 2014 at 1:27 pm

    Awesome! this video helped me a lot! to understand iso and sec and tert! which was like greek and latin to me before..
    keep posting!
    where are you from.
    oh! and i too have a friend named leah!

    Reply
    • Leah4sci says

      January 16, 2014 at 3:42 pm

      Thank you, I’m so glad I can help you make sense of this complex topic.
      As for your question, I grew up in Brooklyn (NY) but currently reside in Long Island (NY)

      Reply
  16. Saquib Shaikh says

    January 15, 2014 at 5:37 am

    leah is awesome, thanx

    Reply
    • Leah4sci says

      January 15, 2014 at 1:24 pm

      You are very welcome

      Reply
  17. Shreya Dhaga says

    January 3, 2014 at 3:44 am

    awesome!!!! thanks 4 helping i was having a lot of trouble regarding this!!

    Reply
    • Leah4sci says

      January 3, 2014 at 2:06 pm

      You are very welcome

      Reply

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