Alkene Addition Reactions Made Easy! - Product Prediction Tips! - Organic Chemistry

This video is mean't to just help you guys out with Product Prediction in case you're stuck and you only have a few minutes left and have nothing to lose and no time to go through the mechanisms to make sure your answer is right. In this video I show the usual pattern that Hydrohalogenation, Halogenation, Hydroboration, Acid Catalyzed Hydration, Acidy Catalyzed Alkoxy Addition, and Halohydrin formation occurs.

*******2020 Mid CoVid Update*******
Hey guys! So YouTube removed all annotation bubbles that used to pop up on videos. So some of my corrections don’t show up anymore. I think the main correction that’s missing is that Hydration via Hydroboration Oxidation causes the H to go on the “Good” more substituted carbon of the alkene and the OH to go onto the “Bad/Crappy” (less substituted carbon).

But both must be double WEDGED or double DASHED (unless of course the carbon they are sitting on isn’t a Chiral Center where you don’t need to show stereochemistry aka wedging/dashing. Some profs will teach that the H and the OH will only yield a major product where they are on the “Less Hindered Face” of the alkene. Meaning if you have an alkene inside a 5 member ring (cyclopentane) and there is already a wedged (pointing upwards) methyl group near the alkene, the H and the OH would add onto the alkene carbons with both being dashed to avoid crowding the top face of the molecule (where the wedged methyl already is.)

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[OrgoMadeEasy]

Mid CoVid
Hey guys! So YouTube removed all annotation bubbles that used to pop up on videos. So some of my corrections don’t show up anymore. I think the main correction that’s missing is that Hydration via Hydroboration Oxidation causes the H to go on the “Good” more substituted carbon of the alkene and the OH to go onto the “Bad/Crappy” (less substituted carbon).

But both must be double WEDGED or double DASHED (unless of course the carbon they are sitting on isn’t a Chiral Center where you don’t need to show stereochemistry aka wedging/dashing. Some profs will teach that the H and the OH will only yield a major product where they are on the “Less Hindered Face” of the alkene. Meaning if you have an alkene inside a 5 member ring (cyclopentane) and there is already a wedged (pointing upwards) methyl group near the alkene, the H and the OH would add onto the alkene carbons with both being dashed to avoid crowding the top face of the molecule (where the wedged methyl already is.)

[annadiem]

I've spent hours to study these but still couldn't remember. You made it so easy and I can remember right away! Thanks so much. You are genius! :D

[HighMagnitudeGT]

I’ve spent hours studying these just trying to memorize the reactions by how they look but never took the time to understand. I’m so glad I found your video that explains where each reactant goes and why!

[KingHammi]

Sometimes I go back and watch your videos for memory sake. You honestly got me through a year of OChem and when I studied for the DAT. Good stuff bro, I appreciate it!

[charmtejero]

7 years ago video still helps me right now, thank youuuu

[Mnqobi_Mkhize]

You explained it better than any textbook or study guide ever could. Thank You so much.

[lissettemunoz]

oh my gosh thank you thank you thank you!!!! I've been trying to figure these reactions for days and how to get the products so I could do well on my organics quiz and you explained it all in less than 10 minutes!! thank you!!!!

[maitha]

I love you.
I didn't even bother to open the book and read the gibberish in there. thanks.

[tiffanylevan]

You have made my understanding of o.chem 100x easier. Thank you so much!

[carlosyanes]

Frank, U wanted to thank you fr your great help. It is so wonderful to have you videos!!!

[daniw]

This video is so old but every video I saw was so confusing and this was actually helpful, thank you so much!

[OrgoMadeEasy]

I will! I will! lol Thanks for the motivation, keep em coming to help me through my rough patches :D.

[Axelstudio_]

Cheers brother, this made Orgo studying so much more straightforward.

[MsAllanaP]

THIS DEFINITELY HELPED ME ON MY TEST!!! THANK YOU!

[OrgoMadeEasy]

Hi Yash, your welcome I'm glad this came in handy. I'm unfortunately very busy right now and still have to finish editing Acids/Bases parts 3 and 4 so I don't think I'll be able to make a video in time. If you want you can ask me questions via my Facebook page ( look up Orgo Made Easy). Gluck!

[maramabuhaidar]

So just to make sure, in the last problem (hydration by hydroboration) you drew the H on the less substituted carbon group and the OH on the more substituted group, but then you made a note on the side during the video, that H goes on the more substituted whereas OH goes on the less substituted. So I just wanted to know which one is the correct one? The one you drew, or the note you made on the side?

[lorabell]

Hi Frank!
I passed my exam by watching your videos! I have studied every other way and can't figure it out. You are so helpful. Can you do more videos of each subsection as well. my next exam is about Chirality and radical reactions. Please and thank you

[wesharding]

Thank you so so so so much. I can't explain how helpful this was.

[manguobuding]

This is a great video for reviewing ochem, thanks :) I did want to point out though that in the halohydrin formation, the leftover Br is united with the leftover H (from H2O) to form HBr!

[volleydancer]

Wish you were my teacher. I would have no problem passing your class because you actually TEACH!