E1 Reactions

[georgeofthejungle90]

does Sn1 also occurs ?

[s0m0c]

Gracias.

[avb3060]

cooooool



[07794294114]

Can somebody explain why the SN1 reaction does not occur. I thought that only stong bases were able to be involved in elimination reactions as they are powerful enough to take the hydrogen from the carbon hydrogen bond which is very stable. Can somebody please answer my question.

[fraddi]

Neutral Br has 3 valence electrons not 7

[fraddi]

@fraddi oops i think i made a mistake

[fraddi]

@fraddi oops i was thinking Boron, stupid me!

[ranoooosha]

Is it the same with dehydration of alcohols?? This reaction is driving me insane : 1-butanol with an acid gave us 1-butene AND 2-butene .. now shouldn't it result in the formation of 1-butene only because it's an E2( OH is on a primary C) reaction and it's unlikley for the rearrangments to happen ?? If you can answer me that I'll appreciate it :)

[slightmuse]

@ranoooosha i think the reason why it produces both 1- butene and 2-butene has to do with the major and minor products. check out zaitsevs rule. the video is on the right.

[ranoooosha]

@slightmuse Yea but wouldn't that be the case if it was 2-butanol?? 1-butanol will not form a carbacation there for will not rearrange so it will result in one product which is 1-butene ,, or will it rearrange ?? Now I can't figure out if it's E1 or E2 reaction .. if it did rearrange then it's an E1 reaction ,,,, Thanks for replying :)

[immortallykool]

If you were a nucleophile and I was the substrate, I would definitely let you attack me xD

[chinmayee17]

when I go to write my midterm i'll be hearing your voice in your head calmly explaining things.

[tadeethio]

thank you very much chem guy. It really explains things that i want to know.

[vctrylghtspr91]

I understand!!!!

[MutantNinjaFly]

I don't understand why the oxygen would take a positive charge. It is so electronegative, wouldn't it be much more stable with a negative charge, how would the more electronegative oxygen be more stable as a cation than the less electronegative carbon?

[lnr08f]

Why doen't the nucleophile just attack the carbanion like in Sn1 reactions? Once it does that then there will be a positive charge on the Oxygen, but the Br(-) can then just swipe the H off the HOCH2CH3 and make it neutral like it does in the Sn1

[WooCla]

@lnr08f Don't take my word for it...but I think that does occur. I'm pretty sure E1 and SN1 reactions happen at the same time, competing with each other.

Or, maybe the ethanol is too bulky to get at the carbocation. Those are my thoughts. I don't exactly know what the answer is :l

[afairlycoolnerd]

is there anyway we can get a sheet with the full workings???? this is legendary- i might actually pass chem now- despite sleeping in all the lectures :)

[NMLP1]

oh...my...GOD! i knew you had calc and diff eq videos... but WHAT THE FUCK!!! ochem now?!?!?!? i love you. i fucking LOVE YOU! jesus. your videos have saved my stupid ass so many times hahaha. wait wait wait.... okay serious compliment here. the main difference between you and my professors is that you slow things down so that students can understand. you kick ass mayneeee =P keep up the awesome videos

[quitejaded]

@NMLP1 I know I freakin' flipped my lid when I saw he had science videos. I was like "Oh sheeiiitttt, my GPA is saved after all!"

[NMLP1]

oh...my...GOD! i knew you had calc and diff eq videos... but WHAT THE FUCK!!! ochem now?!?!?!? i love you. i fucking LOVE YOU! jesus. your videos have saved my stupid ass so many times hahaha

[aidinporras]

you should go take my midterm for me.... haha!

[SainvilJ]

I realized you plucked the hydrogen (on the right) off of the carbon that was next to the carbon bearing the halogen. shouldn't it had been the hydrogen (from the same carbon) but on the bottom so it would be on its anti-periplanar?

[mrpimpyasian1]

How is he so knowledgeable and versatile? it seems to me he knows every subject field there is.

[khosrow]

@mrpimpyasian1 thats because he has so many degrees. he is also gifted.

[BebsiForever]

@SilkiestShark Yeah...I get where you're coming from...get it, "coming from" HAHAHAHA i know...I should be shot...

[Bio1993Hsapien]

whats the difference from Sn1 and E1? or are they the same?

[CarnalDiafragma]

@Bio1993Hsapien

SN is a nucleophillic attack, E is electrophillic

[voutasaurus]

@Bio1993Hsapien: In E1 the solvent doesn't Substitute for the leaving group (like S1), it Eliminates it.

[vart12345]

nice talk.

[RoflCopter58]

@SilkiestShark u must really like chemistry

[fraddi]

@RoflCopter58 He was just looking to make a chemical reaction...

[LuvDatFilms]

fiiiiiiiiiiiiiiiiiiiiiirst lol