SN1 SN2 E1 E2 Reactions (Live Recording) Organic Chemistry Pre-Finals Review
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- čas přidán 10. 05. 2024
- leah4sci.com/orgolive SN1 SN2 E1 E2 Reactions - Prefinals review and practice session
Substitution and Elimination reactions are one of the trickiest topics you’ll cover in organic chemistry. In this pre-finals review and practice session we’ll break down each of the substitution and elimination reactions looking at reaction, mechanism, reagents, and shortcuts for quickly identifying missing reactants and/or products.
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Links from this session:
- Organic Chemistry Study Hall leah4sci.com/join
- Formal Charge Shortcut • Formal Charge Shortcut...
- Substitution / Elimination Cheat Sheet + Quiz: leah4sci.com/substitution-eli...
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I can't believe I'm getting such an amazing education for free... thank you so so much!!!!!!!!!! love from Boston:)
You are very welcome! Hope this helps you ace your exams
Grab the SN1 SN2 E1 E2 Reactions Session Notes + Bonus Worksheets at Leah4sci.com/orgolive (+ heads up for upcoming sessions)
I have a question about the SN2 and E2, what if there was a bulky base like t-BuOK as the nucleophile?
Great question! Big bulky bases (because of their size) always choose the less substituted hydrogen for a Hoffman product in E2 reactions. Make sure to see my video on the Big Bulky Base, found here: czcams.com/video/HP8Iz4_QP2A/video.htmlsi=gdCeSnDOSKDOJhLq
for the last example, why wouldn't the pi bond form to the right since it would be quaternary substituted ?
This is the trick behind this problem. You have to show the reactant that would NOT form what feels like the most substituted pi bond, specifically by placing the leaving group lower down where it's not close enough to the right to form that pi bond
What makes bromine to leave the compound it is attached with?? . As a leaving group .
Br is a highly electronegative atom and pulls on the bond between itself and carbon. This is what gives the C-Br bond so much polarity to the point where it eventually completely breaks off
thank you alot :)
you're very welcome, also your YT channel is so fun! I have several assistants that crochet, I'll pass it along to them!
@@Leah4sci thanks alot! ✨🥰 I just got an A in my OC exam last week. Thank you for the great content. I'll definitely pass your account to my uni-friends💯✨
what are some conditions that favor E1>SN1 or SN1>E1
They're mostly in competition, however heat will slightly favor elimination over substitution
Sorry Leah l missed the video where you taught the SN1 reaction
The SN1 reaction and mechanism is introduced in this video:
czcams.com/video/OopqmYnQLyQ/video.htmlsi=28-VOr1Txx7dH0u7
For the entire Substitution/Elimination series, make sure to visit my website at Leah4sci.com/SNE