Practice SN1 SN2 E1 or E2 Mechanism Given Reactant and Product
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Күн бұрынleah4sci.com/SNE presents: Choosing SN1 SN2 E1 E2 Reaction Mechanism Given Reactant & Product
📺Watch Next: SN1 Reaction Energy Diagram • SN1 Reaction Energy Di...
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This video shows you how to choose between SN1 SN2 E1 E2 when given complete reaction conditions including starting molecule, reagents and products.
You'll also see the step by step mechanism for what appears to be a tricky intermediate transition.
This question came from a student's exam where over 100 students failed to get full credit.
Links & Resources Mentioned In This Video:
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Catch the entire Nucleophilic Substitution and Beta Elimination Tutorial Series along with the FREE practice quiz and cheat sheet on my website at leah4sci.com/substitution-elim...
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For private online tutoring visit my website: leah4sci.com/organic-chemistry...
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@danialk8435 7 жыл бұрын
I watched every single one of these videos on the SN1 SN2, E1 E2 playlist. WOW this was SO AMAZING. I am so grateful my professors were bad which forced me to find such an awesome teacher like you. I wanna buy you pizza. And I only buy pizza for people I love. Hahah, Thank you soooo much!
@ams9013 2 жыл бұрын
HAHAHA I felt this
@Leah4sci 6 ай бұрын
Lol, thanks! Pizza is a favorite in my house!
@mop2420 7 жыл бұрын
Leah you're a miracle worker, my professor talks a thousand miles an hour and doesn't stop to clarify things, but your videos make it so easy to understand what's going on at each step!!
@Leah4sci 6 ай бұрын
You're so welcome, I'm happy to help clarify things for you!
@3mmar522 6 жыл бұрын
I know its been 2 years since you uploaded this video, but I want to let you know people are still blessed by your videos. Thank you so much
@Leah4sci 5 жыл бұрын
Thank you for the kind words! You're welcome :)
@tylerhart3080 2 жыл бұрын
5 years later and still thanked :)
@jungkjeeminbts3124 5 жыл бұрын
Thank you so much for your videos! You have absolutely no idea how much you saved my life for orgo. I adore how you slowly and clearly explain the concepts and example problems while also warning us of any possible mistakes students may make. Because you point out any possible mistakes people may make, it helps me understand where I came from and why I made that mistake. You seriously are the best teacher ever!!
@Leah4sci 5 жыл бұрын
You are very much welcome and thank you for the kind words! :)
@aniruddhasharma3032 4 жыл бұрын
Thank you Leah Ma'am.This lessons are very helpfull during this lockdown periods..I am grateful to have you as my mentor.
@Leah4sci 4 жыл бұрын
You're very welcome!
@alejandraurdaneta7081 2 жыл бұрын
Just watched the entire Substitution and Elimination series and wanted to say that you are a rockstar! You have helped me so much to really understand the material, and wanted to give you a huge shoutout for creating such amazing and helpful content.
@Leah4sci 2 жыл бұрын
Wow, thanks! Glad I could help!
@rawannour1027 6 жыл бұрын
Thank you so much, you saved my life!!! I watched every single video of this play list, and I'm pretty confident that I will nail the next test.. I'm getting A's on my o-chem class because of your amazing videos. You are awesome !!!
@Leah4sci 6 жыл бұрын
Thank you very much for your kind words! I'm so glad you are feeling more confident
@alattar4154 7 жыл бұрын
Leah, you are the best! Thanks for making this video :)
@Leah4sci 6 ай бұрын
You're very welcome!
@FueledByKass 6 жыл бұрын
Leah's videos got me through Orgo 1 and 2, and now I'm studying for my Chemistry GRE T_T. Time goes by so fast. Thanks Leah!!
@Leah4sci 5 жыл бұрын
Thanks for the feedback! :) Good luck on your studies.
@girlpowered1696 7 ай бұрын
Woooow, I was able to solve this w/o explanation after watching your entire series before! so happy. Thanks a million
@Leah4sci 7 ай бұрын
This is the most difficult organic chemistry reaction chapter. Congratulations on being able to solve this and I'm honored that my videos helped play a part
@hannahdangelo7556 2 жыл бұрын
I have watched several videos on Sn1/Sn2/E1/E2 and was just about to give up for the night on learning these mechanisms because it seemed like no video could help me. 3 minutes of this one video taught me more than all the other youtube videos I have watched today. Thank you
@Leah4sci 2 жыл бұрын
Oh wow! So glad I was able to help!
@MimiTachiwkawa 7 жыл бұрын
I've been on your website and webinars. they are super helpful! went from a 48 to a 91.
@Leah4sci 7 жыл бұрын
Oh wow! That's awesome! Glad I could help
@legendparthgaming4694 3 жыл бұрын
Your lectures extremely help in clearing my concepts for JEE preparation .. thankyou from India
@Leah4sci 3 жыл бұрын
It's my pleasure!
@christinbogley2238 7 жыл бұрын
Your videos are so helpful. Thank you so much!
@Leah4sci 6 ай бұрын
You're welcome, so happy to help!
@gabrielkovach2655 Жыл бұрын
This is an incredible explanation. Huge thank you !!
@Leah4sci Жыл бұрын
You're very welcome!
@AbdurRahman-zc8sm 7 жыл бұрын
Very nice lecture and I got lot of techniques and well knowing sn en rxn bundle of thanks
@Leah4sci 6 ай бұрын
You're so welcome!
@shanemichael9011 5 жыл бұрын
Having studied so many orgo chem reactions over the last couple of years I watched this informative video and saw the product and knew exactly what happened. But honestly, was a little rusty and could not see that simple hydride shift once the water molecule left. Was stuck there for a moment before realizing why. And this is the reason that little pin prick exposures to chemical reactions during a few free minutes of my time helps me out as opposed to a direct sit down and try to cram a lot of information in just a short time. I do not believe long term memory works in that fashion. It is about exposure and repetition. Thanks again for the video.
@Leah4sci 5 жыл бұрын
Good point! Thanks and you're welcome! :)
@boost4O 7 жыл бұрын
I HAVE A TEST THURSDAY GOOD TIMING. THANKS SO MUCH.
@Leah4sci 6 ай бұрын
You're so very welcome!
@adityapandey8941 7 жыл бұрын
I am in love with the explanation
@Leah4sci 6 ай бұрын
Glad you liked it!
@ran9628 6 жыл бұрын
your channel is the best!
@Leah4sci 6 жыл бұрын
Glad you think so!
@Thriver21 4 жыл бұрын
Wonderful videos,loved it ♥️
@Leah4sci 4 жыл бұрын
Thanks so much 😊
@NicksLocker 4 жыл бұрын
Thank you, is very helpful!
@Leah4sci 4 жыл бұрын
Glad I could help!
@kaziamin4933 4 жыл бұрын
Thank you :) this is really helping me to understand that i have never taught like that.
@Leah4sci 4 жыл бұрын
You are so welcome!
@shaikrafiq9498 4 жыл бұрын
Amazing explanation ..... am incredibly happy to have u as my mentor leah mam🤗🤗🤗
@Leah4sci 4 жыл бұрын
Awww, thanks for your kind words!
@joori012 6 жыл бұрын
Cleared up so many confused nights of endless studying!
@Leah4sci 6 жыл бұрын
Glad I could help!
@samrashafaq1717 5 жыл бұрын
You're amazing! 💙
@Leah4sci 5 жыл бұрын
Thank you Samra :)
@hayaa.6545 5 жыл бұрын
You are the best thank you so much
@Leah4sci 5 жыл бұрын
You are most welcome! :)
@janaawada3741 5 жыл бұрын
would you please post a video about figuring out the reactant given the product
@Leah4sci 5 жыл бұрын
For help with this, I recommend joining the orgo study hall. Full details: leah4sci.com/join
@charlesdale2600 6 жыл бұрын
Thanks!
@Leah4sci 6 жыл бұрын
You're welcome!
@laraaalnubani9693 7 жыл бұрын
LEAAAAAAAAAAAAAAAAAAH, I GOT AN A+ IN ORGANIC CHEM BECAUSE OF YOUR VIDEOS! THANK YOU, LIFE SAVER.
@Leah4sci 6 ай бұрын
That's awesome!!!!
@nikolasseidel7306 2 жыл бұрын
Hoe do we rule out E1 mechanism followed by protonation of the alkene leading to the most stable carbocation which is then attacked in similar fashion to Sn1 followed by a hydride shift?
@Leah4sci 2 жыл бұрын
That's a great question! This video doesn't cover the protonation of an alkene, as you mentioned. Unfortunately, I don't offer tutoring over social media. 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/ You may also view my entire Substitution-Elimination video series at Leah4sci.com/elimination
@chilufyachewe3843 4 жыл бұрын
leah thanks for the video #DTC
@Leah4sci 4 жыл бұрын
You're very welcome
@NothingXMuch101 7 жыл бұрын
11:20 ... why couldn't you use water (leaving group) as a nucleophile to get rid of the H? is because it's not likely to happen?
@Leah4sci 7 жыл бұрын
It's a numbers game. In an alcohol solution you have millions of alcohol molecules and a small number of water leaving groups. Sure it can happen, but what is the probability that a water gets there first? Some professors DO show it as water carrying out the deprotonation. Point is to understand and then keep your mechanism as simple as possible.
@uzairkhan6957 7 жыл бұрын
mam you are best
@Leah4sci 6 ай бұрын
Thanks!
@SanjeevKumar-bu8lr 7 жыл бұрын
i m so happy... today... to find a best organic chemistry teacher.... you are more better than better mam....
@Leah4sci 6 ай бұрын
You're so welcome!
@swapnilmaurya2643 6 жыл бұрын
What wiil be the product if secondary halide has reagent both koh and etoh
@Leah4sci 6 жыл бұрын
At which point in the video?
@sudhanvab 5 жыл бұрын
At 6:49 why can't the Hydrogen be removed that this stage of reaction by hso4 or etoh?
@Leah4sci 7 ай бұрын
This is a reversible step, if the solvent removes the extra H+ from oxygen you get right back to the reactant. Instead I show the forward steps to help you arrive at the product. As for HSO4- it's a very weak base spectator ion and will not participate in the reaction
@mantjita 3 жыл бұрын
I have a questions about the deprotonation of the H once the EtOH is attached to the molecule- Why can't the water take the H and create H3O+ on the side?
@Leah4sci Жыл бұрын
It can, watch for the explanation at the end where HSO4- is just one option
@sanamaki6460 Жыл бұрын
Is it possible for the first step to be a hydride shift? The carbocation would be tertiary and the leaving group would be water. I thought I did something with the hydride shift but I guess not LOL 😂
@Leah4sci Жыл бұрын
We cannot perform a hydride shift until we have formed the initial carbocation. But in this example, the hydride shift does significantly change our product molecule! The rearrangement is very important.
@hejab792 7 жыл бұрын
i thought sn1 gives two products (the front and back side attack) so in this example, shouldn't there be 2 products?
@glittershxck 7 жыл бұрын
SN1 only gives racemic products at chiral centers.
@mr.serpent6909 10 ай бұрын
in any subject one of best explanation i have ever received...
@Leah4sci 10 ай бұрын
Glad to hear it!
@victorianicol-smith9436 7 жыл бұрын
Hi Leah, I've just started an organic chem course and found your site which looks AMAZING!! I didn't see anywhere to donate or pay for the materials though? Do you do this for free? Can we put in a little thank you donation anywhere? Thanks, Tori
@Leah4sci 6 ай бұрын
Thanks so much! If you're still wondering all these years later, your recommendations to others is enough!
@AnishKhan-mb3nd 5 жыл бұрын
You the best
@Leah4sci 7 ай бұрын
aww thanks!
@abdallahableel4373 7 жыл бұрын
TA organic chem at UC Davis please, you'll save lives. Including mine lol
@Leah4sci 7 жыл бұрын
Glad to help :)
@sarahbahreinian9713 4 жыл бұрын
Why can't HSO4- be the attacker?
@cyrille6323 4 жыл бұрын
I was going to ask the same question. Did u figure it out?
@Leah4sci Жыл бұрын
HSO4- is a very weak spectator and pretty much unreactive in solution
@TheTruthIsWEIRD 6 жыл бұрын
this question is so easy...like seriously? OH with acid will dehydrate to form a carbocation which can rearrange. Normally you would think E1 would happen but since you are given the product it's obvious what happened (SN1). Additionally you can tell SN1 happens because you have a weak nucleophile and a tertiary carbocation.
@Leah4sci 6 жыл бұрын
Glad you find it easy :)
@allisonthomas7847 5 жыл бұрын
I wish you were my teacher
@Leah4sci 5 жыл бұрын
awwww! thank you for the kind words. I hope the videos helped.
@nickel-rb5is 4 жыл бұрын
My head is spinning
@Leah4sci 4 жыл бұрын
oh no! that can lead to dizziness (jk). I recommend watching the video again to help clarify anything that didn't make sense. And if you still don't get it, I suggest looking into the orgo study hall so that I can answer any questions you have on the topic. Full details: leah4sci.com/join
@hexgrade177 7 жыл бұрын
Are u psychic? We just did this in class
@Leah4sci 6 ай бұрын
Awesome! Glad the timing worked so well for you.
@mr.serpent6909 10 ай бұрын
11:25 mam is it possible that the water molecule which was discarded before can take this H ? and why HSO4 did not act as attacker but the Et0 acted as attacker?
@Leah4sci 10 ай бұрын
Yes, the water molecule (as it is an aqueous solution) could also remove the proton from this position at 11:25. But always show what your professor wants you to show! If you are asking why the HSO4- did not attack in previous steps, I would say that the reason for this is both a mixture of sterics and product stability.
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