Cyclic Acetal Protecting Group Reaction and Mechanism
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- เผยแพร่เมื่อ 11 ก.ย. 2024
- leah4sci.com/ac... Presents: Cyclic Acetal Protecting Group Reaction and Mechanism in Organic Chemistry
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In this video:
[0:22] Acetal Protecting Groups Review
[1:54] Using the Gas Mask Trick
[2:52] Step by Step Analysis of Sample Problem
[6:27] Re-Draw Molecule
[9:14] Acid Catalyst Regeneration
This video shows you the detailed mechanism for forming cyclic acetal protecting groups! You'll also see tips about redrawing, and a time saving shortcut to use during practice and your upcoming exam!
Catch the entire Acetal Video Series along with the Acetal Practice Quiz and Cheat Sheet on my website at leah4sci.com/ac...
For more in-depth review on Acetals including practice problems and explanations, come join my online membership site the organic chemistry study hall: leah4sci.com/join
For private online tutoring visit my website: leah4sci.com/or...
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I'm learning this right now in Orgo II. Perfect upload timing, thank you!!
That's awesome! glad to help
You are simply the best, LEAH. You made my organic chemistry 1 so easier and you still making the 2 as well. BRAVO! Keep up with the good work
Thanks Bernard! Always glad to help. :)
you might be my favorite person in the world. thank you so much for your amazing videos
Awww! thanks! and you are very much welcome! :)
Finally..some good teaching when I needed it... thanks
Glad it was helpful and you're welcome!
Hey Leah, can you please make a couple of more videos in this series
1. regarding the protection of the ketone group in a compound where aldehyde and ketone both are present.
2. some complex practice questions.
That'll be a lot of help. Thanks
Thank you for the suggestions
You just saved my homework grade. One of the best online science teachers with out a doubt
Thanks! Glad I could help!
Only video of this mech I could find thx
you're so welcome
Thnku so much..
Respect for u from india
You're very welcome
One word - Excellent.
Thanks so much!
Thank you , ure explanation is very helpful mam😁😁
You're very welcome!
Very nice and helpful ,,,thanks a lot ❤❤❤❤
You're very welcome!
This was so helpful, thank you!
You're so welcome!
Best explanation...thanks..
You're very welcome
Thank you, Mam!
You're very welcome
Am I the only one who sees a smiley face around the cyclic acetal protecting group @ 2:08, or am I just turning crazy?
You aren't the only one
Orgo makes you see things! Try looking at the budweiser logo without seeing a chair conformation 🤣🤣
Great video thanks! Just one question, my professor had the other alcohol on the diol attacking the electrophilic carbon center kicking off the water, whereas you had the oxygen resonate to kick off the water. Does it matter which way the water leaves? Again, Thanks!
I'm sorry, but I don't offer tutoring through TH-cam comments. For help with this and more, I recommend joining the organic chemistry study hall. Full details: leah4sci.com/join
Thank you!
You're welcome!
Finally I got the answer for my MCAT question!
Glad the video helped!
Thanks
You're very welcome
GREAT VIDEO my question is if the diol used has the hydroxyl groups in the middle like butan-2,3-diol does the mechanism proceed the same as it did with the 1,2-ethandiol
Glad you like it! Yes, the mechanism would proceed in the exact same way. In your particular example, the only difference would be a couple of extra methyl groups present on your cyclic acetal. All electron-pushing arrows would follow the same pattern.
Thank u so much!!
You're welcome!
Very good
Glad you like it!
Thanks a lot, your videos are helping a looooot! I just have one question.. If we have a normal alcohol with only one OH group, the product is going to be with 2 O atoms that are not bonded with C atoms chain, and if we have an alcohol such as 1,4- diol with 2 OH groups, the 2 O atoms are going to be bonded with an C atoms chain (''monster''); am I right? TIA!
you are right
I'm sorry, but I don't offer tutoring through TH-cam comments. For help with this and more, I recommend joining the organic chemistry study hall. Full details: leah4sci.com/join
@@Leah4sci kmfd!!!!!!
I LOVE YOU THANKYOUUUU
You're welcome!
Thank u sooooo much
You're welcome!
Leah4sci omg!!!!! I can't believe u replied i love u so much u are my idol ❤❤
Hi thank you for your help but in the formation of acetal from hemiacetal are you sure H2o+ won't leave on its own? because my professor didn't make the pi bond from lone pair on O and simply said this is an SN1 reaction and H2o+ is a good leaving group so it would leave on its own followed by a NA by the second alcohol.
I'm confident in my mechanism, but you should always know what your teacher wants you to draw. The water is a good leaving group, but rather than form a carbocation, I believe the preference would be to allow carbon to follow the octet rule and give the positive charge to oxygen.
@@Leah4sci herh mbaaa
Great
thanks
Very nice mam
Thanks Muhammad
Thanks mam
You're welcome :)
HOW DO U REMOVE THE ACETAL
The acetal protecting group can be removed by the addition of acid in water. It would be an acid-catalyzed hydrolysis of the acetal.
Thanks bae
You're welcome!
Methanamine r u mad it’s not that it is methylamine (a previous video)
Hey it is methanamine as well ..... she's not mad
I could be, who knows?
Ketones form ketals, not acetals.
According to current IUPAC rules, ketals are a subset of acetals. The term "acetal" encompasses both aldehyde-derived and ketone-derived structures.
Can you provide in hindi please I m from India 🇮🇳
Thanks for the suggestion, but this is something I do when I have extra time, so providing in Hindi isn't something I can do right now.