Free Radical Halogenation

[@musclepharmbrahh4549]

It saddens me that we students pay thousands of dollars for tuition yet rely on Professor Dave to explain stuff so easy and precise which somehow our professors cannot do.

[@ProfessorDaveExplains]

+musclepharmbrahh damn straight, i'll take the money!

[@brittniep9219]

I actually have a fantastic professor but we looked at this awhile ago and I need to see stuff about one dozen times in ochem before it kinda sticks and professor Dave Explains is great!

[@brittniep9219]

Alfredo Fatale professor Dave I believe has a PhD... he isn’t self-taught... it’s hard to prove that you have sufficient background knowledge in a field without easily accessible grades or tests to prove it. As wonderful as KZbin is, I HAVE been led astray by people without sufficient skills and knowledge. Formal education has benefits, it’s just the way it’s taught that can be very problematic. I have had mostly awesome professors in my experience, the college can also be the problem. I did stem at CC, and then masters at a UC. I did an undergrad degree in Anthro and that department was awesome, also at a UC. But my departments are small... I never had classes over 40 students but once.

[@boobella899]

Brittnie P Very well said.

[@issakaiddrisu8775]

The thing is that at the tertiary level, Professors don’t really teach, they lecture, so once they introduce you to the topic, it’s the students’ duty to get enough knowledge of the topic from different sources. The lecturer wouldn’t teach you to your fullest understanding, you’ll have to do some digging up and understand the concept better. And as for the tuition fee it’s actually not for the tuition, which is sad. It’s for your certificate and the exams you’ll be writing.

[@juliekring7574]

Teach me, O-Chem Jesus. It's late and I might be dying.

[@GracieJohnston]

Thank you from the bottom of my heart for putting up all these SUUUPER helpful videos. I understand so much more because of you, and am feeling inspired by chemistry instead of dreading it!!!

[@ProfessorDaveExplains]

My pleasure! I want everyone to love molecules.

[@abhishupanghal5136]

​​@@ProfessorDaveExplainsgood to see you reply even after 5 years of making video but will you reply after 9 years?

[@ryangibson609]

thanks dad

[@ganapathibhat5360]

Dad...😀😀😀

[@soumyasucharitasahu6117]

Dad 😮😮

[@SahandBrizi]

Sus

[@shintaayam]

How come i just found your channel??? You're giving so much useful information, and i just subbed:)

[@danielbronson9066]

Dave, I'm a poor college student. But I just bought a sticker in solidarity with you and your channel. I really appreciate your videos.

[@ProfessorDaveExplains]

thanks for the support!

[@inespereira9780]

Dude... You brought my passion for chemistry back THANK YOU

[@tshepisomatshidiso1958]

Your videos are short and easily understandable. You save time! Ola Ola Professor Dave.

[@jcurvebusiness8085]

In which class do you read??

[@AbdelrhmanElsayed]

loved how you connected all topics around halogenation of alkanes I studied in 4 separate subjects! ♥

[@shayanakhavan6002]

Dude, you're awesome!

[@Mistgabel]

very straightforward and really good explained as always thank you ! Maybe you could have said something about the stability of phenylradicals compared to benzylradicals ..

[@purplepickleman6172]

One of the most useful videos on this!

[@abdmajid7728]

thanks alot ! ur videos are helping me to go through exams !!

[@modelaircraft12]

beautiful!! simply beautiful!

[@Yankeesftw23]

Great video man

[@tibyanabdu8440]

Oh I finally found a video that explains what I didn't understand in the lecture 💛💛💛thank you

[@sccm100]

Once again, thanks man!

[@jeffreycuellar241]

I wish it was this easy when I took O Chem, I & II

[@stevensonjack1629]

thanks professor dave for your simple and understandable explaination!!!!!

[@yosefahmed2370]

i just love you man

[@hudaquadri8792]

Very nice sir this is fantastic 👌👍🏻👍🏻👍🏻

[@JMSouchak]

Where's your little intro song? :(

[@ProfessorDaveExplains]

+Joseph Souchak ohhhh it's in almost all the other clips!

[@JMSouchak]

+Professor Dave Explains I know! It's great and so are all your videos! it's just a travesty that there's no jingle I was waiting for it the entire video!

[@Indrarakesh]

Professor Dave Explains good 1

[@burntoutelectronics]

So how would you both get high yields of and concentrate the carbon tetrachloride halogen?

[@nallathambynallarajah7385]

Thanķs prof. Clear explanation.on radical mech.

[@sanikagawande4347]

Please make a video explaining rearangment in freeradical mechanisms im having a really hard time rearranging the molecules

[@NewWesternFront]

How does your explanation of the different yield ratios relate to Hammond’s Postulate?

[@Sarahh_]

so we don't have to have a halogen + heat to have this reaction occur? It can occur without heat?? I've been taught that it needs heat to occur this entire time and I have the DAT exam in 2 weeks :( please reply and save my score

[@sebastianhoesing1749]

Did you pass?

[@Sarahh_]

@@sebastianhoesing1749 haha yes I did thank you ! - hardest exam I took thus far

[@sebastianhoesing1749]

Congrats !!👍

[@neerumahajan5704]

Can chlorination of methane can take place in dark ???

[@gebeyehuyiketel8496]

Thanks so much

[@DevanshDixit-h6h]

Can methyl shift happen in free radical halogenation of neopentane

[@toufick]

Thank you sir.

[@growwithbts3038]

I have an doubt, in initiation step chlorine is devided into two free radicals but why we use only one free radical in first step and then use the 2 chlorine radical in other steps?😰

[@ProfessorDaveExplains]

well only one radical is needed, the other will go and react elsewhere

[@tylerforbeck8956]

omg I haven't seen you since phsyics

[@faisalabdullah7962]

Do alkene and alkyne can change into radicals ?

[@jonathanlalrintluanga4737]

Why do radical of F is more reactive than other halogen?

[@ProfessorDaveExplains]

because it's smaller

[@maylinisabella_]

can you explain your tattoo? i always pause the video to look at it haha i'm curious as to what it is/means

[@ProfessorDaveExplains]

check out "ask professor dave #3"

[@ceciliaalicona1704]

if theres a different hydrocarbon molecule let's say methylcyclopentate, would the radical target the tertiary hydrogen or one of the hydrogen in the primary methyl carbon? other than that question I understand everything else. Thank you so much for your help.

[@ProfessorDaveExplains]

depends on the reactivity of the radical, chlorine will be less selective than bromine for example, but leaving the tertiary alkyl radical intermediate will always be more thermodynamically favorable.

[@ceciliaalicona1704]

Professor Dave Explains so with carbon, both the tertiary and the primary would be substituted. If it were bromine, would it mostly go towards the tertiary?

[@ProfessorDaveExplains]

you mean chlorine? yeah chlorine just goes everywhere, so you'll get a mixture of products. bromine would go almost exclusively to the tertiary position.

[@ceciliaalicona1704]

Professor Dave Explains yes that’s what I meant! Okay thanks! I get it!

[@hannahmorgan9782]

Maybe I missed it but did you show how to get the yields

[@ProfessorDaveExplains]

pretty tough to predict, you would just do the reaction and observe

[@tariqhussain8681]

clear concept

[@nihalrazak9809]

thanks prof

[@rajnarayanchowdhury5824]

Professor Dave in chlorination how do we know which one is the major product??

[@ProfessorDaveExplains]

depends on the substrate, you'll definitely get a mixture as chlorination is not very regioselective

[@rajnarayanchowdhury5824]

Sir i have got a question that is chlorination of 2 methyl propane by free radical mechanism...i have to predict the major among the two2 chloro propane and one chloro propane

[@ProfessorDaveExplains]

so that will be the primary chloroalkane, because there are three identical methyl groups, so it's three times as likely that it'll end up on a primary carbon than the tertiary one, statistically speaking, and there is only a slight push towards tertiary thermodynamically, so there'll be at least twice as much primary product as tertiary.

[@rajnarayanchowdhury5824]

Sir i cant understand the reason...can u explain it more clearly?? Can we use hyperconjugation concept??

[@ProfessorDaveExplains]

everything i would say is in this clip! just watch again.

[@vasanthisuperkaruna3407]

YES SIR

[@mohitrao659]

Sir can you please take illustratuons from JEE ADVANCED for your videos. It would simply be awesome.

[@swegattyswooty9307]

00:00

[@rittenbrake1613]

GREEEAAAAAAAATTTTTT

[@amangairola18]

From india 💜

[@AmitKumar-rf3hr]

what's that tattoo .??? Looks great .!!

[@ProfessorDaveExplains]

Parsec!

[@عبّدِالُمٌجْيَدِالُدِحُمٌ-ب5ج]

انا من اليمن جزاك الله الف خير شرح جدا حلو

[@jcurvebusiness8085]

Hi I am from India .

[@sinaabedini7487]

Chem jesus

[@karishma606]

Yo bless you

[@akshatsharma7380]

are you an Indian?. Because you like an Indian

[@ProfessorDaveExplains]

nope, italian!

[@Imubozuu]

He looks nothing like an Indian.

[@abdmajid7728]

i thought you andrea pirlo in first place , anyway forza juve sir hahaha

[@jollyjokress3852]

You are all biased because every second scientific video is made by an Indian ;) btw, he totally looks part Italian or at least being from the Mediterranean area ;)

[@z0699z]

TF is he talking about someone give me the summary ;;;;;((((

[@abhinavrao1603]

are you Indian??

[@ProfessorDaveExplains]

nope, italian!

[@abhinavrao1603]

sir your videos are really nice. keep it up. Hail the Italy. Thanx for the video.

[@suyashpandey35]

thank you sir

[@tariqhussain8681]

clear concept