Alkyne Reactions & Tautomerization: Crash Course Organic Chemistry #18
Carbon-carbon double bonds are pretty common in nature, but triple bonds between carbons, called alkynes, are not. When alkynes do pop up in nature, it’s usually in a compound that’s toxic to humans, however, we can synthesize alkynes that are life saving medicines and materials. In this episode of Crash Course Organic Chemistry, we’ll learn about alkynes and some of the reactions we can use them in (hint: it’s a lot of the same reactions we used for alkenes!)
Series Sources:
Brown, W. H., Iverson, B. L., Ansyln, E. V., Foote, C., Organic Chemistry; 8th ed.; Cengage Learning, Boston, 2018.
Bruice, P. Y., Organic Chemistry, 7th ed.; Pearson Education, Inc., United States, 2014.
Clayden, J., Greeves, N., Warren., S., Organic Chemistry, 2nd ed.; Oxford University Press, New York, 2012.
Jones Jr., M.; Fleming, S. A., Organic Chemistry, 5th ed.; W. W. Norton & Company, New York, 2014.
Klein., D., Organic Chemistry; 1st ed.; John Wiley & Sons, United States, 2012.
Louden M., Organic Chemistry; 5th ed.; Roberts and Company Publishers, Colorado, 2009.
McMurry, J., Organic Chemistry, 9th ed.; Cengage Learning, Boston, 2016.
Smith, J. G., Organic chemistry; 6th ed.; McGraw-Hill Education, New York, 2020.
Wade., L. G., Organic Chemistry; 8th ed.; Pearson Education, Inc., United States, 2013.
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Пікірлер: 91
As an organic chemist, I decided to watch this for fun while having breakfast. I quickly found myself glued to the screen! The explanation is so clear and elegant, yet thorough enough to help you pass an organic chemistry 101 exam; the illustrations are really high quality and the animation really helps with understanding electron pushing. I feel like some university level organic chemistry lectures would greatly be improved if the teacher just played this video at half-speed. I'll definitely be watching more of these. Huge thanks to the whole Crash Course team!
Is there anyone who only watches these videos for fun like me? Never any exam stress, just pure pleasure. Learn, live, love. 🖖
@srgkzy1294
3 жыл бұрын
welcome to "Nerdfighteria"
@srgkzy1294
3 жыл бұрын
DFTBA
@Dayummmsalt
3 жыл бұрын
Same, even though I'm not studying this at all (maybe in the future)
@AliFatCat
3 жыл бұрын
I'm only 12 I don't even need to know this!
@nihaal7750
3 жыл бұрын
Yea maybe u can say so cuz u ve already learnt this. It takes me two to three re watches to appreciate what they are trying to convey.
As a student in chemistry, I dedided watch this video not only as a media for my study when facing exams, but I also see it to see how to explain material in a very fun and enjoyable way for my students in the future. Seeing the comments sections makes me even more sure that students are happy with fun learning chemistry on this way like this
@affifahnurariani8601
3 жыл бұрын
Yes, as a medical student i agree with u. This video makes study organic chemistry so much fun and easier
A quick note on hydroboration-oxidation: typically, disiamylborane (a "bulkier" variation of borane) is used to prevent the formation of messy product mixtures. Since alkynes have two pi bonds and can react twice, a reaction with borane causes unwanted, extra additions. However, the steric hindrance from using disiamylborane prevents such extraneous additions from happening. Therefore, disiamylborane is useful in hydroboration-oxidation because the reaction would only yield one major organic product, which is typically desired.
I wish I had this available to me when I was taking organic chemistry.
@davidhumphrey2593
3 жыл бұрын
Same
I really love your editing. It make me stick glued to the video. Keep it up ❤❤❤🙌🙌🙌
God this series just makes me remember why I failed chemistry in highschool 😂
Crash course the best
@alicespiller1011
3 жыл бұрын
Com certeza 👉👍
Just a few days too late for the exam :(
@taylorwatts6259
3 жыл бұрын
5 hours ago for me 😔
@pay1370
3 жыл бұрын
One year to late for me lmao 🤣
LOVE THIS! Can you PLEASE do a video about Palythoa Toxica? My little girls and I almost died from an airborne toxin/ coral polyp in my reef tank, and NO ONE in the hospital knew how to help us.
Thanks for posting today! Literally doing an exam on this today!
Thanks a lot!! Very helpful!
My final is tomorrow and I got a 29 on my last test send prayers
This series need to be binge watched lol
Hi thanks for finding you you are awesome and your lesson are helpful
Some days you're an enol and some days you're a keto, you know?
Cool!
A video on Haloalkanes and Haloarenes please.
For the base-catalyzed tautomerization reaction, wouldn't it be inaccurate to use BH3? BH3 can perform the addition twice, so in order to prevent this from happening wouldn't you need a larger boron compound with two large substituents? Like disiamylborane? A larger boron molecule would mean more steric hindrance and ensure water doesn't add across the alkyne twice and you get the desired product, unlike with BH3.
I would need that last year haha 😅🥲
These have been too dense for me for about 10 episodes, but I do like watching the first few minutes to learn about real world applications.
What’s it like being able to watch this without getting flashbacks to how traumatic organic chemistry was? It’s a fun subject but not when you’re competing with pre-meds for a good grade.
8:53 “pissed-off intermediate” 😂😂
@ShirinRose
3 жыл бұрын
😆 *pit stop intermediate
Love Peace - Is there anyone who only watches these videos for fun like me? Totally! Wish I'd had more organic chemistry in 1970!!! My tutor vanished for 6 months so I didn't get past the methane / ethane / ... isobutane etcetera starter :-(
You should do Aztec mythology
my brethren of the earth, I haven’t studied and I have an exam in 3 days. Cross your fingers i get out of this depressive episode soon so I can do more than watch a video to study.
cool
It's 5.30 am at india 🇮🇳 dude
ppOverheat over here going wayyyyy too fast for my slowass brain to catch up. recommend watching in x .5
@YourWealthCome
3 жыл бұрын
If you think this is fast watch the crash course chemistry with Hank... I had to hit the 10 rewind and pause a-lot! He was a really fast talker.
Keto-enol tautomerism is the most common tautomer couple, right? What's the compound example?
@auracantikacamila7372
3 жыл бұрын
Yaps, keto-enol tautomerism is the most common tautomerism. Keto-enol tautomerism refers to a chemical equilibrium between a keto form (a ketone or an aldehyde) and an enol (an alcohol). The keto and enol forms are said to be tautomers of each other. For example, aseton. Acetone is the simplest of ketones, used as a polar solvent in most organic reactions. Acetone has acidic hydrogen atoms, so it can ionize to produce enolate ions. Enolat ions can be in two forms, it's keto and enol. I'm sorry, if my answer is incorrect, please correct it. Thank you✨
@blademaster8399
3 жыл бұрын
@@auracantikacamila7372 thanks
wow, first time so early
Yay , commenting for the algorithm
dope
Wheres john amd hank tho
Final exam tmr!
Goro Lives!!!
What a great explanation!!! Like if you think crash course is life saving
Something
Constructive feedback: I would have loved for this to be, say 14 minutes and move slightly slower. Watching on .75 speed with lots of pausing.
Notice me🙋🏻♂️
@Aditya.Pandey.
3 жыл бұрын
Hi
@dan3935
3 жыл бұрын
@@Aditya.Pandey. hi 😂...sup?
@Aditya.Pandey.
3 жыл бұрын
@@dan3935 hey, where are you from?
@sahilameen4122
3 жыл бұрын
@@Aditya.Pandey. tum joru ki ghar
Bucky ball
how old are yall 😩😩
I'm just studying 9th grade but I feel Organic chemistry is lot more fun.
She's looking like Camila Cabello to me
Petition for a Music Theory Crash Course
I need the 0.75x speed button but I can't find it
I’m just sad frogs are dying out
Ahahaha I chose the wrong major - fml
@rachmahdwidamayanti7176
3 жыл бұрын
Same with me, bruh haha
Who's here studying for final exams 🙋♀
Talks too fast!
@veil43
3 жыл бұрын
Agreed
@grainfrizz
3 жыл бұрын
too
@ 3:42 What's with the playschool microscope? Objective lenses are an inch above the slide. So i guess this purple prop is to connote SCIENCE? Too silly
Anyone want to be my Boyfriend 😍💋 💝💖♥️❤️