E/Z Absolute Configuration of Alkenes
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- Опубликовано: 10 сен 2024
- It's EZ to assign E and Z absolute configuration to alkenes. Guess which convention we get to use? Cahn-Ingold-Prelog is back! Don't forget, zee zame zide. You have to say it with a German accent, or you lose points on the quiz.
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Since there's no equally fantastic OC Channel in german, I always watch your videos and its sooooo cute how you pronounce the german words in this one haha. Keep up the good work, you're great!
haha why thank you! my dad lives in Aachen say hello for me :) and feel free to correct my pronunciation, i want to be authentic!
Professor Dave Explains hello Dave can you do some tutorial in stereochemistry models and mykayama and Suzuki reaction
haha i thought the same especially Zusammen
I had no idea that the origin of E/Z really is german... I thought its just a crib from our chemistry teacher xD
You explained a thing in 6.00 minutes what my professor wasnt able to do in 2 hours and still i undertood more during this 6 minutes than i did during the 2 hours. Thank you!
Just discovered theses OC videos and you do such an amazing job! Not only do you explain the topic clearly, but you answer all the questions, in advance, that I may have. You're super enthusiastic and these videos really did help me a lot!! Thanks Professor Dave :)
Thank you for using complicated examples like the ones you'd actually see on an exam!
the first half of my semester in organic chemistry was so difficult :( now that i've found this channel all those lessons now seem easy. Thank you!!!
I watch your videos because I love your lil intro , you also explain things so well thanks a lot!!
I am a romanian living in Italy and I watch your great videos that are such a fortune to me! Thank u
Jesus.. why I just dint watch your video instead of reading the crap my proffesor gave me... understood this in 6mins (Thank you Prof Dave!!)
yes,he is jesus
Had a trouble finishing an assignment quiz getting due tonight with this. Now it's all sorted. Thank You !!
The E/Z nomeclature is the first thing in chemistry I saw where it helps to speak german :D And thank you very much, there aren't any good videos about organic chemistry in german ;) And btw, the way you pronounce "entgegen" sounds very authentic but the Z in "zusammen" is a bit too soft (as it often is used in the englisch language), but in german language, it sounds more like "tsusammen" if you know what I mean :D
haha i will work on it!
it is sooo sweet to hear you say "susammen"! so, dont change it ;)
ZEE ZAME ZIDE DAVE IS MY HERO AND MY SAVIOR
Man you saved me from organophobia
Something that my professor took 2 50 minute lectures to explain you did in 6 minutes and made it much more clear. Thank you sir.
You’re the best chemistry professor on RUclips!
6 years later & I am still learning from your RUclips channel , Tank you
Thank you SOOOOO much! This is the first video I've watched that SIMPLIFIES it. Much appreciated!
your videos really helps me to understand the chapter before i go into the study guide or any study material keep up the good work....may God bless you.
Love your German
For me as a german, E for entgegen and Z for zusammen, were just ideas in my head to remember the letters. Awesome that the realy derive from these words. :D
I'm from India. 👌very good teaching us sir
Thank you! Studying for my organic chem test and your videos really help!!
you're saving my academic life. thank you!!!!
Thank you so much for taking the time to make these videos! Some of the other youtube videos that exist out there simplify it a little too much and I still don’t understand the complicated terminology that my professor/ book uses, but you use that nomenclature while still giving an in-depth explanation making it easy to understand!
I love your videos. They've helped me grasp o'chem much more easily. Thank you!
Thank you Prof. Dave for helping me to understand the E/Z alkene easier. Thanks!
Hey Prof Dave! Really appreciate your organic chem videos. Keep it coming :)
Thank you for your easy explanation
Found this channel recently, loved the explanations in organic chemistry and physics. ❤
Nice! Clear and helpfully visual. Helped me learn the concept. Finals are coming!!
Professor Dave saves the day!
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"Zee zame zide". I'll never forget that . Thank you:)
Excellent explanation. Thank you
2:18
Are'nt we supposed to consider atomic number instead of atomic mass?
Yes, my bad.
@@ProfessorDaveExplains Np ..love u, from India
Dave, I appreciate everything you do. You might want to place this E/Z video before the Zaitsev and Hofman Elimination video. Thanks.
"zee zame zide" is really funny and thats why I'll never forget it
What if the groups tied again? So if was C,C,H and C,C,H. Which groups do we compare?
then keep going until there is a point of difference
you explain great!
Even I (I´m from Germany) can understand it although I´ve never learnd some of these technical terms :)
thank you :D
Ohh you saved my life with this helpful video
you are saving my A Level chemistry! thank you!!
If on one side there are compound of same priority then how to name E And Z
Holy moly, you just save me for tomorrow's test
life savior thanks!!!
lol i also thought that its on zee same side, love the triple Z tho PD !!! thx again king
(2Z,5E)-3,7-dimethyloct-2,5-dienol
Thank you so much for your work. Zeezamezide, I'll never forget that :D
Thank you for the mnemonic, Zcience Jezuz.
I was Super confuse thanks for CIearing everything up
i think your channel saved my life
zee same side is useful , thank you , I will leave as much as comment as I could to promote your channel , thank you Professor
Great explanations, many thanks
You are the best, Professor Dave. I will pray for you, Sir.
he's actually jesus
4:12 important point on ties in E/Z isomers
Thanks professor, appreciate it.
Once again, professor Dave saves the day...
Thank you!
Very help full explanation thank you so much
thank you for saving my life once again
thank you
The perfect explanation!
Some video said it's the atomic number, is it still correct to use atomic mass for determining E or Z?
Thanks dave!
Thank you Prof!!!!
Epic teaching !!
Thank you chemistry jseus
cant find video where you explain about cis and trans,please share link for it
Thanks prof
You are a legend
What about alkenes in a ring? Would you still use E and Z?
Good
Ohh yeeeee.. thanks a lot 🙏
Thank you for the very helpful video! I now understand how to assign E and Z configuration! Do you have any suggestions for determining when a product demonstrates neither configuration? My textbook swears this is a thing, but I can't seem to figure out how anything could be neither E nor Z.
Sally P the only way E/Z wouldn't apply would be if an alkene is monosubstituted or completely unsubstituted. as long as there is at least one substituent on each carbon, E/Z can be assigned.
Professor what if branches have double or triple bonds?
what if they're the same exact group on the side you're trying to determine between?!
thanks!
Thank u
Thanks you professor dave
traditional thai medicine student owe you thankyou
I wish I could just give you a hug
A gazillion thanks!!!
Just PERFECT👍
Why noone said zusammen translates ,,together"?
YOU'RE GREAT!!!! THANK YOU!!!!
I like how he says zusammen. Sounds like susamen xD. Hello from germany.
Omg I finally get it. I sat 3 hrs in lecture confused and lost af
Thank you chemistry Jesus.
Thanks a lot 😘
It's super easy to remember if you took German :P
You rock. It’z az zimple az zat. 😊
Zee Zame Zide... you crack me up!
Tip:
Zusammen sounds like "Zame Zame" (Same)
***** that's right, as i say in the video, zee zame zide!
Professor Dave Explains You explained it so much better than my university professor, thanks!
most clutch channel
What will be the iupac nomenclature of these two compound.
Wow you're good!!!!
Professor, @4:32 you said that carbon was bonded to 2 other carbons and a hydrogen, I'm probably wrong but I see it bonded to 1 carbon the cis-hydrogen and an implied hydrogen making that point also a tie forcing you to look at the iodine and therefore making it an E alkene as well. Someone please help.
there are two methyls on that carbon
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I’m confused professor 😢
In the first one it true c,c,h
But in second it c,c,I so I it higher
So I think it should be E right?
I know that are right , however in my question paper , he asked me to assign configuration (E/Z/R/S) to Stereogenic centres and this molecule has got 2 doubles , how I can assign them in that case
+Taha Benabeid stereocenters can be assigned R/S, double bonds are assigned E/Z, each of which will get its own designation
We all knew that he was coming back to save us, but we didn't know that he was returning to redeem our GPA