No video :(

Electrophilic Aromatic Substitution

Подписаться 3,2 млн

Просмотров 195 тыс.

50% 1

Electrophilic Aromatic Substitution is one thing that benzene does. The mechanisms are getting trickier, no? Don't worry, practice makes perfect. From halogenation to Friedel-Crafts alkylation, this is a handy family of reactions.
Watch the whole Organic Chemistry playlist: bit.ly/ProfDave...
General Chemistry Tutorials: bit.ly/ProfDave...
Biochemistry Tutorials: bit.ly/ProfDave...
Biology Tutorials: bit.ly/ProfDaveBio
Classical Physics Tutorials: bit.ly/ProfDave...
Modern Physics Tutorials: bit.ly/ProfDave...
Mathematics Tutorials: bit.ly/ProfDave...
EMAIL► ProfessorDaveExplains@gmail.com
PATREON► / professordaveexplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: amzn.to/2HtNpVH
Bookshop: bit.ly/39cKADM
Barnes and Noble: bit.ly/3pUjmrn
Book Depository: bit.ly/3aOVDlT

Опубликовано:

22 авг 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 138

@urania6299 7 лет назад

These are basically the best chemistry videos I can find on youtube (including Khan academy). I'm in my second year of a part time OU science degree, I work 12 hours a day and I have 2 kids. These videos are especially helpful for using a precious spare 10 minutes I might have to find and get to grips with a particular subject very quickly. I feel good going into my exam and I feel as if I couldn't have done it without your help. Thank you very much Professor Dave!

@ProfessorDaveExplains 7 лет назад

thanks for the kind words! please tell everyone you know to subscribe!

@PunmasterSTP Год назад

I know it's been a while, but I just came across your comment, and I hope you've been doing well! Also, how did your exam go?

@qhaweteyise1955 8 лет назад

You are the best chemistry teacher that has ever taught me... Salute from Rhodes University, South Africa...

@PunmasterSTP Год назад

I know it's been seven years, but I just came across your comment and was curious. How'd the rest of your studies go there?

@Adel26. 5 лет назад

Doing Bsc Chemistry and having you as an online tutor is a blessing.

@fatehasultana143 3 года назад

Which university

@hemant9210 2 года назад

Hair on my screen 😄

@forgive_me_for_being_unfunny Год назад

@@fatehasultana143 still asking ? 😂

@PunmasterSTP Год назад

@@forgive_me_for_being_unfunny I'm still asking too!

@PunmasterSTP Год назад

Out of curiosity, which university did you attend, and how did your classes go?

@sukhmankhuttan9460 2 года назад

Your videos are short and precise. You impart the required information in less time , which is so rare with chem teachers !

@madisonlynn7898 6 лет назад

You're saving my life in organic right now! Much appreciated!!

@ProfessorDaveExplains 6 лет назад

my pleasure!

@PunmasterSTP Год назад

How'd the rest of your class go?

@xenog4386 3 года назад

You’re such a genius when comes to explaining the concept the easiest way possible.

@piyush9555 10 месяцев назад

I'm enlightened, I don't have any words for how outstanding your explanation is, you're my saviour

@hkksucks56 7 лет назад

I had so many ahaa moments....oprah would be proud! Thank you for taking your time to make these videos!

@seasq 6 лет назад

You are why I feel like there's hope for me making an A in my OChem 2 course. Thank you thank you!

@ProfessorDaveExplains 6 лет назад

you can do it!

@PunmasterSTP Год назад

If I might ask, did you indeed make an A?

@seasq Год назад

@PunmasterSTP lol I actually couldn't remember, and I went to digging for my transcript on my computer. I ended up with a B though.

@PunmasterSTP Год назад

@@seasq Oh sorry, I didn't mean to make you go digging for your transcript! Either way, I think it's still cool that you ended up with a B 👍

@seasq Год назад

@PunmasterSTP lol no worries. It wasn't too hard to find since I recently went back to school for another degree. I'm happy I got that B too. It was an interesting but tough class.

@makeupxpq4055 5 лет назад

You literally save my life every single time thank you soso much professor !

@PunmasterSTP Год назад

How'd the rest of your classes go?

@D1ckator 6 лет назад

You are awesome, professor Dave. I very much appreciate what you do.

@rambles2727 3 месяца назад

Your videos are great for review where I can watch without needing to take notes. Then using the quizzes at the end to see if I truly understand. If not then I go to a less concise source and do deeper review and then come back :)

@haroun8332 8 лет назад

Great explanation, I'm watching all your videos and I found them very helpful, thanks for sharing your time

@Iinachanel1973k 3 года назад

The best explanation of EAS reactions! Thank you so much! xoxo

@PunmasterSTP Год назад

Yes, he makes things EASy!

@SourceCodeDeleted 15 дней назад

This is actually really well done!

@shivaniparmar7086 Год назад

You're a life saver 😄

@klepmeta3396 2 года назад

very simplified and well understood

@fredrickzoller5643 5 лет назад

You're a great source of knowledge Professor Dave! Thanks so much!

@animeshmishra7613 3 года назад

you just made my med school chem easy !!! Thanks you soo much !!!

@crypsisrosa9779 9 лет назад

Thank you for the example. It helped a lot!

@chemorgo5467 3 года назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-WwueVrKt7Ow.html

@piyush9555 10 месяцев назад

wow, wow, wow, Dave sir, I'm enlightened thank you, you explained much better than my chemistry teacher

@KarinaLopez-bg6gz 8 лет назад

Your videos are so helpful! Can you do a video on Nucleophilic Addition to the Carbonyl group and Nucleophilic Addiction-Elimination at the Acyl Carbon?

@ProfessorDaveExplains 8 лет назад

+Karina Lopez i will add it to the list!

@KarinaLopez-bg6gz 8 лет назад

Thanks!

@bashiruk2123 7 лет назад

what a great teacher hi to you from Nairobi university kenya

@younisyounis5686 4 года назад

Thank you so much 🙂 Following you from Iraq 🇮🇶

@jaishreeramraomundkar1826 6 лет назад

Dave can be pronounced as Dev and in Hindi Dev means God. You are the best Chem teacher

@wonthedon2737 5 лет назад

ok lets relax buddy

@devyndevyndevyn 5 месяцев назад

once again saving my life ilyyyyy professor dave

@kasondemumba3938 8 лет назад

thanks alot prof but try to combine some tutorials to make a long one that can be followed nicely especially on reactions

@AmandaMagana 6 лет назад

dude you are iconic...please come teach at UCLA lol you actually make me understand

@mahnoor2768 6 лет назад

Beessttttt explanation ever

@madboycal7859 2 года назад

Hello, Professor dave, great video! When the Br2 adds to the Ferric bromide, having the benzene attack the electrophilic bromine instead of the terminal would still be correct, right? We'd generate a bromide ion because the electrons would go to the nucleophilic bromine and the electrons donated to the ferric bromide would be given back to the electrophilic bromine.

@bernadetteg.tharngan4041 3 года назад

wow, i'm surprised that I got it. The explanations in the book just confused me even more. thank you.

@Nikkunj Год назад

thank you very much sir really helped me understand EAS

@سمرمحمود000 7 лет назад

you just made it so easy ^_^ ...thanks a lot

@carlasalas1932 5 лет назад

Why can't Ochem teachers be clear like this... like are all ochem teacher all over the place?

@wrestlemanialite8474 5 лет назад

Good.

@modelaircraft12 9 лет назад

fantastic! thanks professor DAVE

@PunmasterSTP Год назад

EAS? More like "Amazing lectures? Yes!"

@rishiparwal5705 3 года назад

Sir please explain generation of electrophile in nitrosyl chloride Why cl- forms while N is more electronegative

@wtbgothgf 7 лет назад

Thank you!

@truthhurts986 6 лет назад

Thank you very much. I love the way you explain. But I have a question, Why would FeBr3 and Br2 interact in the first place to begin with? Because by doing that they are creating unfavorable formal charges. Metals dont like to be negative and Nonmetals don't like to be positive. Fe is accepting e- and becoming negative and then its not liking it. Why would I put something in my mouth knowing I would not like it and then throw up? Lewis acid concept sounds like BS in this scenario.

@ProfessorDaveExplains 6 лет назад

It's a good question! But remember that reactions don't have to be especially favorable to occur. That is to say that endothermic reactions will proceed, as long as a collision occurs with sufficient kinetic energy to overcome the activation barrier for that reaction. As for the analogy with the food, it doesn't hold, because you are sentient and molecules are not.

@NewWesternFront Год назад

and also the Br-Br bond is considerably weak, given the relatively large size of the atoms and the fragile, distant bond radius

@georgewalker1632 3 года назад

So so helpful, thank you!!

@brightonhamusonde5080 6 лет назад

great stuff

@muhammad922 9 лет назад

Thanks prof.

@ankittrivedi2904 5 лет назад

Great!

@Daniel-nu8uk 9 лет назад

It would be great if you even added a video on Nucleophilic Aromatic Substitution...

@ProfessorDaveExplains 9 лет назад

I will try to include that in the next round of updates!

@dilafrose5498 6 месяцев назад

Professor dave, The best❤

@abhisheknarwal3427 3 года назад

Enough for jee or not???

@Alchemist_171 4 года назад

Professor if you're reading this comment then I urge you to add some more reactions to your organic chemistry playlist. Reactions of Degree level, that is. This stuff is high school level, very useful still we gonna need those additional reactions please! ;)

@Bronte866 11 месяцев назад

Did they teach spelling and grammar at your high school?

@maxmustermannderaufrichtige 3 года назад

best intro ever

@rassimsimou1594 8 месяцев назад

Good

@divyavreddy4783 3 года назад

In nitration of benzene why does an electrophile attaches to the meta position rather than Ortho and para

@meso-iso4475 2 года назад

Professor please make video on GOC GENERAL ORGANIC CHEMISTRY {Main topics for jee }

@murkkhatri3550 8 лет назад

can you please make a detailed video on the ether hydrolysis example questions.

@jdavis8919 5 лет назад

I love this guy.

@songohan393 4 года назад

I hope you will always be happy in life I wish you the best

@roshinvarghese6879 5 лет назад

get that organic chapstick big boy. other than that thanks for helping me big boy

@bettyochonma6520 2 года назад

Woww Thanks for teaching ❤

@elijahangel2473 Год назад

Do you know what can break a Benzoapyrene Aromatic ring?

@lisycyriac4689 4 года назад

Can you make some videos on mechanism of halogen op directing

@alderamin1402 2 года назад

You are amazing

@divyavreddy4783 3 года назад

Sir do a video on nitration of benzene and there resonance structure

@nasilelenasilele733 11 месяцев назад

what about the middle resonance structure , how does it form the product

@salarsohail2068 8 лет назад

professor please do a tutorial about molecular orbital treatment of benzene . please

@bhavyayadav8498 8 лет назад

hey......sir felt great doing organic on my own all thanks to u. Can u explain why WOLF KISHNER REDUCTION more preferred over CLEMMENSON REDUCTION for ketones?

@ProfessorDaveExplains 8 лет назад

+Bhavya Yadav wolf kishner is under basic conditions using hydrazine, clemmenson is acidic conditions, so if the substrate is base-labile you want clemmenson, if it's acid labile you want wolf kishner, depends on the substrate in question.

@wsgletschill 2 месяца назад

Thank you chemistry jesus

@ahmedsserunkuma1170 5 лет назад

thanks proffessor iwant to inquire about how the positive charge on the bromine dis appears

@ProfessorDaveExplains 5 лет назад

it's neutralized when it gets the electrons from the Br-Br bond

@priti659 7 лет назад

please can you explain cine and ipso substitution?

@harishd37 7 лет назад

Also, another doubt.. If the formation of the co-ordinate bond between bromine and FeBr3 creates a formal charge that is energitically unstable. Then how come it does even happen??

@ProfessorDaveExplains 7 лет назад

endothermic reactions happen all the time, it's just a matter of a collision occurring with sufficient kinetic energy so as to surpass the activation energy for the reaction.

@leaxx7791 3 года назад

you're awesome dude

@chemorgo5467 3 года назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-WwueVrKt7Ow.html

@NewWesternFront Год назад

thank

@rittenbrake1613 6 лет назад

GOOD !

@zikoszikoglou2347 8 лет назад

What if we are presented with the reaction: Ar-E + H-A --> ? What is the product?

@ProfessorDaveExplains 8 лет назад

Hmm, I suppose it depends on the acid and the electrophile. Some acids might be strong enough to add to benzene, I suppose. But the group on the ring might react with the acid too, especially if it is a hydroxyl, amine, or carbonyl.

@harishd37 7 лет назад

Hey at about 7:45 .. You said benzene reacts with the bromine atom to the left as the bromine atom on the left gives electrons to the Br+ on the right. So wouldn't this bromine atom( the left one) become Br+ ?? coz one electron of the left bromine also goes to the right one? So in this reaction does Br+ react with benzene???!! and if it does.. how come bromonium ions react? And isn't it actually energitically unfavourable to rip apart an electron from Bromine (or chlorine) to convert it into Bromonium(or Chloronium) ion?? This is confusing me.. Pls explain in detail Thanks!

@ProfessorDaveExplains 7 лет назад

a pi bond from benzene coordinates to the bromine atom so it remains neutral!

@nicolamneck3507 7 лет назад

sry I didnt know how to comment correctly..... nice video :) but I didnt get where the H-proton in step 3 was coming from ?

@ProfessorDaveExplains 7 лет назад

there's only two steps! you mean the second step, elimination? that proton is on the substrate, remember that in benzene every carbon has one hydrogen.