Hello Kal! OTs stands for a Tosylate Ester. It's a specific example of what are generally called sulfonate esters. We form them from alcohols to convert the hydroxyl group of the alcohol, which is a poor leaving group, into a good leaving group. Most students won't learn about them until the chapter on alcohols (I cover them at the beginning of this video: ruclips.net/video/AkT1HXpy_pI/видео.html). But I mentioned them in the substitution / elimination chapter for the minority of students who may have it presented here as well. Hope this helps!
YOU ARE A KING I am retrking ochem a second time since i almost failed the first time around. I wish these videos were around the first time i took it. You are awesome!!!
Hi, thank you so much for this amazing lecture, I would really appreciate it if you could do a short review of how to distinguish between strong bases/weak bases and nucleophiles. I am studying for the DAT and upon review I find that this is the toughest part.
Is it more distinguishing between strong bases that are poor nucleophiles? Most strong bases are also good nucleophiles, with the exception of bulky bases such as LDA or T-butoxide since they are too bulky for nucleophillic attack. Check the following two videos and let me know if this helps: ruclips.net/video/ucC9IhQX6JU/видео.htmlsi=sIMQLaxwdCfEAct0 ruclips.net/video/0kHHZQuiwec/видео.html
Hey Chad I am following your Organic Chem Video Lectures . It is superbly amazing to understand the concepts but for practice I want to purchase the organic master course . Is there any offer or discounts on the course please let me know . You're great chad ❤
I love your videos man, youre the only reason i understand these things, taking the DAT IN 3 WEEKS! I did have a question though. are solvents the last thing we look at? You are like the only source that says polar aprotic when it comes to E2, even though I know you put an asterisk , but it kinda confused me to be honest.
Hi Chad! Thank you so much or these videos. You are saving my life. At 8:04, you say that later down the road you will discuss bases v. nucleophiles. Can you please kindly direct me to that video? Thank you!!!!
![Choosing Between SN1 SN2 E1 E2 Reactions [Live Recording] Pre-Finals Review](/img/1.gif)
how did chad learn organic chem without watching chad's prep on RUclips
@@ChadsPrep thank you for saving my life during finals. I’m acing organic thanks to you
He read alot of ChemOrganic books tho
literally a life saver I have a quiz on this tomorrow!
Awesome timing Ankita! Glad this worked out for you. Best tomorrow!
Just want you to know that you are a hero to me!!!
Thank you!
This man is going to be the reason I pass my exam tomorrow
I hope you do well!
his videos got me a 95 and 97 on my last two exams
@@ChadsPrepthanks Chad !
@@katieknight7021 Way to go!
@@scarlet2589 You're welcome!
QUESTION: you describe the leaving groups as OTs>I>Br>Cl . My question is what does OTs stand for? Sorry if its a dumb question
Hello Kal! OTs stands for a Tosylate Ester. It's a specific example of what are generally called sulfonate esters. We form them from alcohols to convert the hydroxyl group of the alcohol, which is a poor leaving group, into a good leaving group. Most students won't learn about them until the chapter on alcohols (I cover them at the beginning of this video: ruclips.net/video/AkT1HXpy_pI/видео.html).
But I mentioned them in the substitution / elimination chapter for the minority of students who may have it presented here as well.
Hope this helps!
YOU ARE A KING
I am retrking ochem a second time since i almost failed the first time around.
I wish these videos were around the first time i took it.
You are awesome!!!
Glad you found the channel, Gaby - Hope you do well this time around!
Hi, thank you so much for this amazing lecture, I would really appreciate it if you could do a short review of how to distinguish between strong bases/weak bases and nucleophiles. I am studying for the DAT and upon review I find that this is the toughest part.
Is it more distinguishing between strong bases that are poor nucleophiles? Most strong bases are also good nucleophiles, with the exception of bulky bases such as LDA or T-butoxide since they are too bulky for nucleophillic attack. Check the following two videos and let me know if this helps:
ruclips.net/video/ucC9IhQX6JU/видео.htmlsi=sIMQLaxwdCfEAct0
ruclips.net/video/0kHHZQuiwec/видео.html
Hey Chad
I am following your Organic Chem Video Lectures .
It is superbly amazing to understand the concepts but for practice I want to purchase the organic master course .
Is there any offer or discounts on the course please let me know .
You're great chad ❤
honestly youre helping me so much. really enjoy watching :D
Glad to hear it - Happy Studying!
I love your videos man, youre the only reason i understand these things, taking the DAT IN 3 WEEKS!
I did have a question though. are solvents the last thing we look at? You are like the only source that says polar aprotic when it comes to E2, even though I know you put an asterisk , but it kinda confused me to be honest.
Man i love u so much, i tried varity of youtube channnel nothing helped me the way u did , thank you so much
Glad the channel is helping you so much.
Thank you ❤
You bet!
id give a kidney to have u as my ochem professor
Can you tell me your blood type?
Hi Chad! Thank you so much or these videos. You are saving my life. At 8:04, you say that later down the road you will discuss bases v. nucleophiles. Can you please kindly direct me to that video? Thank you!!!!
Thankyou sir
You're welcome
Thank you! You really helped me in my first exam and now you are helping me to get though the second one.
Glad to hear it, Fay - keep up the hard work and success is yours!
This shit easy thank you chad
You're welcome
We are not worthy! Thank you!
You're welcome Brennan! Glad you found this lesson helpful!🙂
Hi, just a tip: you're talking way too fast IMO. It's perfect you're lucid, but not all viewers are.
I get that a lot. Fortunately RUclips alows the playback speed to be adjusted. Happy Studying!
Yeah sure 😊you can just slow down the video
He is fine, you can slow down the video. I actually speed it up.