Synthesis of alcohols using Grignard reagents I | Organic chemistry | Khan Academy

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Khan Academy Organic Chemistry

Khan Academy Organic Chemistry

Күн бұрын

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@Baidyabati
@Baidyabati 11 жыл бұрын
You are probably the best tutor ( in organic mechanisms) I have ever come across in You Tube. Please keep up the good work.
@lucastavares5872
@lucastavares5872 2 жыл бұрын
This is great. Just a note that H3O+ might be too strong of an acid in these cases, our professor recommends H4NCl.
@ProfessorDaveExplains
@ProfessorDaveExplains 8 жыл бұрын
Pentavalent carbon? That's a sin! I think there are quite a few errors in this mechanism, most evidence points to a grignard reagent being polar covalent rather than ionic, not to mention the carbon with four bonds plus an electron, that ought to be a physical impossibility, carbon being one of the only elements that strictly follows the octet rule.
@nickt2575
@nickt2575 8 жыл бұрын
+Professor Dave Explains beef
@steveharold8796
@steveharold8796 8 жыл бұрын
few odd mistake fair enough dt we all make some from what ur video havent quite made the cut..appreciate rather than bringing someones effort down
@ProfessorDaveExplains
@ProfessorDaveExplains 8 жыл бұрын
+Steve Harold i'm not trying to bring anyone down, those of us that put out educational videos have a responsibility to make sure they are of the utmost accuracy. if there are errors, they should be pointed out so that misinformation isn't propagated.
@steveharold8796
@steveharold8796 8 жыл бұрын
+Professor Dave Explains sorry for being defensive
@coreyisgur737
@coreyisgur737 8 жыл бұрын
I'm sure that you know a whole lot more about organic chemistry than I do but I'm not really seeing your point. My understanding is that a covalent bond, though I'm a little nervous to present a maxim, is only formed between two nonmetal atoms. So, wouldn't that mean that the carbanion's interaction with the Mg would be ionic? Further more, wouldn't that make sense due to the fact that we are talking about ionic interactions? Again, not saying that you are wrong, but the way that this video explains the interactions between magnesium and carbon seems solid. Also, where are you seeing a pentavalent carbon? The only place that I was able to find one was during, what I assume to be, a concerted mechanism in which the Mg donates a single electron to the carbon and the carbon-halogen bond is removed. I am truly curious so please let me know, thanks.
@afnan-gi2nj
@afnan-gi2nj 5 жыл бұрын
أنت عظيم بجد! 👏💜
@Virtu3Ly
@Virtu3Ly 11 жыл бұрын
You're my hero!!!!!! You explain this a million times better than my professor. Thank you!!!!
@rounaksahu3716
@rounaksahu3716 9 жыл бұрын
very very impressive.. Thank u Guys u r making studies so much comfortable
@decsjr
@decsjr 10 жыл бұрын
This was great, thanks!
@ranamohamed9497
@ranamohamed9497 2 жыл бұрын
Thanks 😊
@jackyd4375
@jackyd4375 11 жыл бұрын
or you can pause the video do the rxn and watch if you did the steps right. :)
@simahakimi4942
@simahakimi4942 10 жыл бұрын
Perfect! Thank you!!
@Baidyabati
@Baidyabati 11 жыл бұрын
Wow that is just superb !!!
@musiqal333
@musiqal333 11 жыл бұрын
Very good explanation. I like. Although yes, I feel you do speak quickly, I followed along!~
@imbored193
@imbored193 11 жыл бұрын
Awesome explanation! Thanks so much! Had to replay it a few times, spoke a little too fast for me lol
@XvidGamingPC-HD
@XvidGamingPC-HD 10 жыл бұрын
Thank you, that's really helpful, I really appreciate it.
@fazalrahman5327
@fazalrahman5327 8 жыл бұрын
yes right
@isachinq
@isachinq 11 жыл бұрын
Thanks! Very useful...
@mseve4271
@mseve4271 10 жыл бұрын
You're a Lifesaver!!!!!!!!!! Thank you!
@rickykay2024
@rickykay2024 10 жыл бұрын
Thx so much !!!!!!!!!!! U r the best!
@darraghh6384
@darraghh6384 7 жыл бұрын
this was a quick and dirty explanation of the mechanism. nice.
@rubin831
@rubin831 9 жыл бұрын
Genius!!!!
@ladybug22bulldogs
@ladybug22bulldogs 11 жыл бұрын
Nice bro!!!
@NATI3218
@NATI3218 9 жыл бұрын
On the example with the formaldehyde, you attacked the carbonyl using the ncarba nion but should there be an arrow showing the MgBr leaving?
@danthedan2
@danthedan2 10 жыл бұрын
Why is it for the second example that the methyl group went away?
@eliacalderon9571
@eliacalderon9571 10 жыл бұрын
I just paused the video and am thinking the same thing...because once the methyl group is added it will no longer be a secondary, but a tertiary alcohol...
@saviour175
@saviour175 10 жыл бұрын
The methyl group was still there and it is a secondary alcohol since the alcohol group was attached to a carbon which is bonded to two other C atom.
@benbrak3713
@benbrak3713 7 жыл бұрын
same question in my mind right now
@Winniethepoohx000
@Winniethepoohx000 7 жыл бұрын
Thank you SO much! I have the worst professor ever ):
@kinpatchifox
@kinpatchifox 9 жыл бұрын
The type of connection between CM and the type of connection between Mg-X ??
@Raisuru
@Raisuru 10 жыл бұрын
quick question, what are the differences between the half-headed curly arrows and the normal curly arrows?
@SubliminalSixtyFive
@SubliminalSixtyFive 10 жыл бұрын
The half-headed arrow illustrates one electron being moved and the full headed arrow shows two electrons being moved
@Raisuru
@Raisuru 10 жыл бұрын
SubliminalSixtyFive Thank you
@p-vashmalik1115
@p-vashmalik1115 8 жыл бұрын
sir kindly plz clear the 18 rule for organomettlic compounds ...
@ccrunnerx92x
@ccrunnerx92x 11 жыл бұрын
Is the Grignard reaction a nucleophilic substitution or addition?
@passntesam3346
@passntesam3346 Жыл бұрын
❤❤❤❤❤
@pamelageorge3487
@pamelageorge3487 6 жыл бұрын
wait why does only one electron from the Mg attack the methyl halide? why not the pair of electrons
@Pepci26
@Pepci26 9 жыл бұрын
Hey what about chirality for the aldehyde to secondary alcohol example? I am struggling with chirality and would appreciate some guidance. Does anyone know of a good video explaining chirality in grignard reations?
@salmankazi5308
@salmankazi5308 9 жыл бұрын
Could any one tell whats is " E+20 " above the arrow...??
@annehiggins519
@annehiggins519 9 жыл бұрын
+Kazi Salman It's Et(2)O, which is diethyl ether
@salmankazi5308
@salmankazi5308 9 жыл бұрын
Annie Higgins​ Thanxz A Lot..
@iftixarhuseynov3199
@iftixarhuseynov3199 10 жыл бұрын
Thanks , very beneficial ...
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