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

  Рет қаралды 315,268

Khan Academy Organic Chemistry

Khan Academy Organic Chemistry

Күн бұрын

Пікірлер: 52
@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
@jackyd4375
@jackyd4375 11 жыл бұрын
or you can pause the video do the rxn and watch if you did the steps right. :)
@decsjr
@decsjr 10 жыл бұрын
This was great, thanks!
@musiqal333
@musiqal333 11 жыл бұрын
Very good explanation. I like. Although yes, I feel you do speak quickly, I followed along!~
@simahakimi4942
@simahakimi4942 10 жыл бұрын
Perfect! Thank you!!
@XvidGamingPC-HD
@XvidGamingPC-HD 10 жыл бұрын
Thank you, that's really helpful, I really appreciate it.
@fazalrahman5327
@fazalrahman5327 8 жыл бұрын
yes right
@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
@Baidyabati
@Baidyabati 11 жыл бұрын
Wow that is just superb !!!
@mseve4271
@mseve4271 10 жыл бұрын
You're a Lifesaver!!!!!!!!!! Thank you!
@ranamohamed9497
@ranamohamed9497 2 жыл бұрын
Thanks 😊
@isachinq
@isachinq 11 жыл бұрын
Thanks! Very useful...
@rickykay2024
@rickykay2024 10 жыл бұрын
Thx so much !!!!!!!!!!! U r the best!
@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
@rubin831
@rubin831 9 жыл бұрын
Genius!!!!
@kinpatchifox
@kinpatchifox 9 жыл бұрын
The type of connection between CM and the type of connection between Mg-X ??
@darraghh6384
@darraghh6384 7 жыл бұрын
this was a quick and dirty explanation of the mechanism. nice.
@ladybug22bulldogs
@ladybug22bulldogs 11 жыл бұрын
Nice bro!!!
@p-vashmalik1115
@p-vashmalik1115 8 жыл бұрын
sir kindly plz clear the 18 rule for organomettlic compounds ...
@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
@ccrunnerx92x
@ccrunnerx92x 11 жыл бұрын
Is the Grignard reaction a nucleophilic substitution or addition?
@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?
@pamelageorge3487
@pamelageorge3487 6 жыл бұрын
wait why does only one electron from the Mg attack the methyl halide? why not the pair of electrons
@Winniethepoohx000
@Winniethepoohx000 7 жыл бұрын
Thank you SO much! I have the worst professor ever ):
@passntesam3346
@passntesam3346 Жыл бұрын
❤❤❤❤❤
@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 ...
Oxidation of alcohols I: Mechanism and oxidation states | Organic chemistry | Khan Academy
12:38
Organic Chemistry: Synthesis of a Grignard Reagent
9:15
Federation University - CAD
Рет қаралды 140 М.
One day.. 🙌
00:33
Celine Dept
Рет қаралды 56 МЛН
Players push long pins through a cardboard box attempting to pop the balloon!
00:31
Preparation of alcohols using LiAlH4 | Organic chemistry | Khan Academy
11:17
Khan Academy Organic Chemistry
Рет қаралды 126 М.
12.4 Grignard Reagents | Organic Chemistry
14:09
Chad's Prep
Рет қаралды 50 М.
Preparation of alcohols using NaBH4 | Alcohols, ethers, epoxides, sulfides | Khan Academy
12:36
The Grignard Reaction | Synthesis of Alcohols
14:00
Organic Chemistry with Victor
Рет қаралды 4,4 М.
Sn1 vs Sn2: Summary | Substitution and elimination reactions | Organic chemistry | Khan Academy
12:01
Grignard Reagent, Reaction, Mechanism and Shortcut
9:12
Leah4sci
Рет қаралды 130 М.
Alcohol nomenclature | Alcohols, ethers, epoxides, sulfides | Organic chemistry | Khan Academy
12:05
Synthesis of Carboxylic Acids | 4 Must-Know Reactions
17:22
Organic Chemistry with Victor
Рет қаралды 3,4 М.
Grignard Reaction
8:11
Professor Dave Explains
Рет қаралды 346 М.
One day.. 🙌
00:33
Celine Dept
Рет қаралды 56 МЛН