Alkene Reactions

[@TheOrganicChemistryTutor]

Organic Chemistry - Video Lessons: www.video-tutor.net/organic-chemistry.html Access The Full 4 Hour Video on Patreon: www.patreon.com/MathScienceTutor Direct Link to The Full Video - Part 1: bit.ly/3kGvtGO Direct Link to The Full Video - Part 2: bit.ly/3n1cxWj

[@Tag_Gw]

Sir why you resperentace 2 electron in mechanism why not only 1 give electron in secondary carbon in the other way primary electron still and make bond with hidrogen?

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Fr ive been watching him sense high school just got done studying him for my micro bio exam now on to orgo 😂

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[@Anna-zd6on]

i learned more in 15 minutes than i did in 2 hour long lectures. thank you so much i have a test in the morninggg

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me toooooo

[@Ibrahim_Hussein]

Let's take a minute to appreciate the effort our professors do to "teach" us this in just 3-4 weeks. It took him a whole hour to explain what just took our professors 4 weeks. "Good job" to our professors 🤕

[@jodiblee]

count your blessings. My professor wants us to teach ourselves before we come to class. Then he will breeze over this so fast and add so much more on top of it.

[@additionalaudition1606]

literally got taught this in one class

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I literally passed thanks for this guy. If you can notice, he sometimes mentions older topics that even he has not to say in video. Thanks man

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How did I get more out of the first 5 minutes this video than the last 4 weeks of lecture 🙃

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[@senny-]

If Organic Chemistry is a video game, this would be the part of the game where the difficulty spiked for no reason. How did we go from balancing combustion equations to THIS 31:26? Did someone even playtest this? /j

[@premedmelody]

Thank you for breaking this down - orgo has been so overwhelming but this made it clear how and when to check for steriochemistry

[@acidicali7776]

I love how you managed to explain each reaction in simpler terms and STILL took longer to explain it than my professor did. To clarify, I'm complimenting you, my prof sped through all of this and I didn't even have time to digest it.

[@youngpacaso3585]

My class recently just started this topic, thank you so much

[@SophiaTrutsch]

such a great video, I love the little explanations he does to reflect on previously learned subjects to remind us...

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3am and I am cramming with this.

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Always ride on the top... You are such a amazing and interesting instructor 🙂

[@jodiblee]

At 25:20, you said, "Make sure you know the difference in these 3 reactions," but I don't know how you knew the difference. Is there something specific that made you know it was anti for the second one and Markovnikov (staying on the double bond) for the last one? Maybe I'm just confused about the 1. and 2. above and below the arrow when it has a list.

[@vishalkote1475]

You can tell the difference by the reagents he used. For the first it is an acid catalyzed hydration so you know that it is markovnikov addition. Also you can have carbocation rearrangement. For the second he uses the BH3THF complex so it’s a hydroboration oxidation. This reaction is regioselective for the anti-markovnikov product. Finally he uses oxymercuration-demercuration. It adds the OH group to the markovnikov position however it is different than the acid catalyzed hydration because there can’t be any carbocation rearrangement because there is no carbocation intermediate for that mechanism.

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What a productive 1 hour

[@thaliafernandez6232]

I love you!!!!!!!!!!!!!!! it took you 2 minutes to teach me this, my teacher and my books did not help me understand the basic

[@ardeshirirani7061]

Thanks for this video I have a test on the reaction of alkenes on Friday, the confusing part is memorizing a reaction mechanism is hard and I will have to draw one on the test most likely, it could be a bromination reaction or an acid reaction

[@garysteeth6497]

What a great teacher. Love your videos, they helped me a lot

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I finally understand everything. Thanks as always!

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Are you the ultimate teacher?

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You are always a life saver! Thank you for what you do.

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You are a great tutor.

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[@Rheologist]

I wish this video had time stamps

[@alfiyashaikh-vn9is]

Best Video on this topic

[@andreameigs1261]

4:58 pka of an alkene is about 35, and HBR is a strong acid. That first step is a proton transfer (acid/base reaction), not a nucleophillic attack. I think it really only starts to matter when you have, for example, a molecule with an alkene and an OH functional group.

[@ianritta]

For the problem that starts around 28:00 wouldn't the product have stereochemistry since their are two chiral centers? And would it be racemic since the H2O attacks the carbocation from either side?

[@mateipopilian8790]

Very nice ringtone at 23:00😂

[@andrewmontoya8511]

lmao yeag

[@AhShtHereWeeGoAgain]

Lmao😂

[@bryanmontagner8101]

30:56 where are you getting the second H2O from after the axonium ion is formed?

[@LinhLe-yk2hz]

@23:50 Wouldn't it be just the iodine version that is formed because you need the HBr to protonate the alkene and NaI, although there's 2 equivalent, can only fully react with the 1 equivalent tertiary carbocation that is formed? The HBr is the limiting step. If there were 2 equivalent HBr and 1 equivalent NaI, that's when both the iodine and bromine version could be formed I think.

[@conradochwat4570]

At 31:14 bottom right. Is the arrow pointing in the right direction in terms of the H20. Because it takes the H so the cyclohexane can have an OH and on the side the H20 turns to H30

[@umeraziz8010]

Love you bro. Thanks for these videos.

[@davisb.w2779]

49:08 OAC is mostly used to remove the hydrogen not water

[@lily98970]

Dear stranger, thank youuuuuuuu

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ur a life saver fr ily

[@ruubenvuits6534]

This video is a good summary, just kinda unfortunate that hydrogenation isn't included (maybe in the full video on patreon). It is not the hardest of the alkene reactions, but surely an interesting one (with for example Pt/C or liquid NH (-78°) to ensure cis/trans isomers respectively)

[@hamzajaleel7082]

I am about to fail my ochem midterm

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How was the exam?

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Fucking retweet Fr.

[@fezii9043]

Wow what the heck, my unit test on this is tomorrow

[@miareads9578]

hello can someone help me with this question TT 3-chloro-2-methylpentane reacts with sodium hydroxide in ethanol to produce compound A (major product) and compound B (minor product). Hydration of compound A produces compound C as the major product. a) Identify the structural formula for compound A, B and C. b) Determine the balanced chemical equation when compound A reacts with Baeyer’s reagent.

[@rahmeenmujahid8071]

Sir plz make a video on the preparations too

[@elliemac0220]

At 9:36, is it possible that the 5 ring, will turn into a 6 ring (after a hydride shift to put the positive charge on the primary carbon atom)?

[@omarb2653]

In this case no because carbocations are more stable at MORE substituted positions. So it would be very very unfavorable to have a carbocation at a primary position. In fact, this is the most unstable carbocation and it is exceedingly rare that you will ever see a primary carbocation. Like once you start learning about substitution and elimination reactions, you'll see that if only a primary carbocation is possible it will always always always do an elimination instead of a substitution because it is much more favorable and fast to do an E2 elimination

[@mpc7440]

the carbocation would be directly on the ring, which (among other things) makes it unsuitable for a ring expansion.

[@toniaderinwale6742]

me with my alkene reaction exam in two days 😳😳

[@AJ-es1pg]

This might be a stretch at getting an answer but can anyone explain how the reaction anti-markonvikov at 25:52?

[@rebeklalhruaitluangi2199]

In 1.08.52, when B have four bonds, its charge should be +ve or neutral like this? I have some doubt...

[@fritzkramerkramer7855]

how do i know if i get the dash and wedge products (with charial center) or one product with neither dashes or wedges (no chiral center) instead?

[@fritzkramerkramer7855]

Wait i get it!!!! only show dash and wedge products if its a charial center! duh!

[@shreysheth3523]

Thank you so much goat

[@jodiblee]

Can anyone tell me where he got the second O in his product at the top at 32:07?

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We alchile te amo eres un chingon explicando

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helped so much

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please where does it begin? i have an exam on Monday and I'm totally clueless on how to go about it

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Notification gang

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my noti do be 6 hours late uhm

[@dr.sanjeevkumar22]

🙏 nicely made..very informative

[@elifcanbaz8584]

35:15 why do we convert pentane to heksane

[@thelogicalthinker3919]

Legend.

[@kacperm.5127]

1:08:39 Is this really ethoxide or is it called propoxide ?

[@mnaveed6866]

Sir can we make more than 1 mechanism for 1 reaction at Bsc level

[@damiacarter3367]

so is the problem at 16:15 stereo selective?

[@Zikeal-d4l]

I have a dihybrid exam tomorrow but I'll study this instead cuz i mean why not y'know

[@500daysofjada]

thank you so much

[@chiamakaokafor8761]

when does markovnikov geochemistry occur?

[@redwillowofdreams8931]

Ignore this, this is for me 43:52

[@daughteroftheking3220]

Does the goat reply back?

[@mukoshyandabala951]

Apparently no

[@farhadjabbri4331]

around 4:50 You said H goes to primary carbon? I was thinking in the reaction of an alkene with HBr, the hydrogen atom typically bonds with the more substituted carbon, which is a secondary or tertiary carbon, rather than the primary carbon. This is known as the "Markovnikov rule." or maybe I misunderstood. not sure

[@ethanlo9745]

Markovnikov's rule is when the H goes to the primary carbon, and the halogen goes to the more substituted carbon.

[@av-li8ff]

Can you please do a video about name reactions?

[@Full-stack1198]

thank u so much !

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without you i will probably live in a cardboard box under a bridge.

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I was able to follow you up until 24:08 :(

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[@hamzasohail6304]

Can you doe aromatic reactions ?

[@trentkirkwood4195]

Why does the Br go on the primary C in the beginning?

[@petevenuti7355]

How do you make alkene from an alkane?

[@fritzkramerkramer7855]

couldnt the first word problem have 4 products instead of 3?

[@zahraentezamian560]

I love the video and I appreciate the effort but there are too many loooooooong ads, and it breaks my concentration

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tysm!

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well, no its more so the As and A lever stuff

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Was once a student here👩‍🎓

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Thanks❤

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from iraq I want to say to my professor : watch this video please ...

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27:00

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14:34

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27:17

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I get having some ads throughout, but you literally have one every 4 minutes.

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0:01

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Around 17 mins, i think you count the C wrong.

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