Class of 2019!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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This is awkward. I feel like a third wheel. :cry: :ninja:

3LZKIj.gif
 
Oh, haha okay!! That's cool! Someone on SDN was talking about their undergrad major in like, virology or pharmacology or something super specific. Jealous!

What annoys me is that our biochem major only has one bio class. It's super not bio heavy at all. Argh!

Pfft. Who cares about biology? Physics is the way to go.
 
I swear every time I click on this thread, 70% of Agent B's posts mention Josh7 or U Wot M8. I'm beginning to think it's actually just one mastermind behind all 3 accounts.
 
No more drawings/gifs for you 😡👎mad:

:cry::cry::cry:

I was kidding. Please more drawing gifs? More drawing gifs please? :help::help::help:

I swear every time I click on this thread, 70% of Agent B's posts mention Josh7 or U Wot M8. I'm beginning to think it's actually just one mastermind behind all 3 accounts.

:laugh: Sorry about that. I just miss their activity in this thread.
 
Guys i'm giving a research presentation tomorrow i'm nervous aaioiabaeroiqht

Edit: SDN doesn't like posts in all caps....
 
What happened to your tablet? Seven of the active members (me, sunflower, Josh7, stumpyman, U Wot M8, neurotroph and ElCapone) in the thread want you to create a drawing gif.

I still have it. I've just been too lazy to draw anything.
 
Yayayayayayayayayay! So happy for you :soexcited:





Noted. 👍


Thanks silverturtle!! You're the best! 😀

Funny story -- our women's rowing team is looking for a coxswain and I thought about joining just so that we could do the same thing, hahaha! Buuut that's a huge time commitment, I'm sure, that I just don't have 🙁 Do you like crew, though?
 
Just slammed the door in this girls face instead of holding it open for her to prove how alpha I am.
 
Thanks silverturtle!! You're the best! 😀

Funny story -- our women's rowing team is looking for a coxswain and I thought about joining just so that we could do the same thing, hahaha! Buuut that's a huge time commitment, I'm sure, that I just don't have 🙁 Do you like crew, though?

You can ask neurotroph about this.

Just slammed the door in this girls face instead of holding it open for her to prove how alpha I am.

:scared::scared:
 
Thanks silverturtle!! You're the best! 😀

Funny story -- our women's rowing team is looking for a coxswain and I thought about joining just so that we could do the same thing, hahaha! Buuut that's a huge time commitment, I'm sure, that I just don't have 🙁 Do you like crew, though?

😍

I absolutely love crew. You're right - it is a pretty big time commitment. BUT, it has given me skills that are incredibly useful. Such as (ridiculous) multitasking, strategizing, being flexible, being a leader, etc...

Just slammed the door in this girls face instead of holding it open for her to prove how alpha I am.

:eyebrow:😏:slap::nono::sendoff::uhno::whoa:
 
I just counted, and I have 26 mechanisms to memorize for the next ochem test. Argh.

I think the hardest part for me is remembering all of the reagents and steric requirements and selectivity and rules. Like nucleophilic addition of Grignard reagents to carbonyl carbon doesn't happen if there is an alcohol on the molecule that is being attacked, so you need to add TBDMS to protect the alcohol and then deprotect it after the Grignard reaction is finished. It's so easy to just forget those things, and synthesise (or retro-synthesise) incorrectly.
 
Drawing gifs? 😍

As I have a prelab and 2 psets to finish for tomorrow, I highly doubt I'll have time to do one sometime soon...

I just counted, and I have 26 mechanisms to memorize for the next ochem test. Argh.

I think the hardest part for me is remembering all of the reagents and steric requirements and selectivity and rules. Like nucleophilic addition of Grignard reagents to carbonyl carbon doesn't happen if there is an alcohol on the molecule that is being attacked, so you need to add TBDMS to protect the alcohol and then deprotect it after the Grignard reaction is finished. It's so easy to just forget those things, and synthesise (or retro-synthesise) incorrectly.

So much sympathy. That was me last semester. It sucked. 🙁
 
I just counted, and I have 26 mechanisms to memorize for the next ochem test. Argh.

I think the hardest part for me is remembering all of the reagents and steric requirements and selectivity and rules. Like nucleophilic addition of Grignard reagents to carbonyl carbon doesn't happen if there is an alcohol on the molecule that is being attacked, so you need to add TBDMS to protect the alcohol and then deprotect it after the Grignard reaction is finished. It's so easy to just forget those things, and synthesise (or retro-synthesise) incorrectly.

Just think of it analytically. For your alcohol example, remember that Grignards are super nucleophiles because of the electron pair on them, and they will attack almost anything they can get their hands on (the exception being ethers). So that's why you have to make sure that your reaction conditions are absolutely anhydrous while making the Grignard reactant and adding in your compound to be oxidized.

And if you remember that ketones need to be attacked from the bottom, you've pretty much got down every ether-grignard, oxirane opening, LH4, BH4, etc down in that chapter.
 
Just think of it analytically. For your alcohol example, remember that Grignards are super nucleophiles because of the electron pair on them, and they will attack almost anything they can get their hands on (the exception being ethers). So that's why you have to make sure that your reaction conditions are absolutely anhydrous while making the Grignard reactant and adding in your compound to be oxidized.

And if you remember that ketones need to be attacked from the bottom, you've pretty much got down every ether-grignard, oxirane opening, LH4, BH4, etc down in that chapter.

Yeah, that makes sense. And I know all that when I'm thinking about it now, but I always miss little things like that on tests. I'm still doing well in the class, it's just frustrating to know something but just fail to recall it or notice it on an exam.

Thanks though!!
 
Yeah, that makes sense. And I know all that when I'm thinking about it now, but I always miss little things like that on tests. I'm still doing well in the class, it's just frustrating to know something but just fail to recall it or notice it on an exam.

Thanks though!!

You're studying silyl ethers as protecting groups? Isn't that a bit advanced?
 
It's interesting stuff. Makes me wish I had done ochem research instead of the stuff I'm doing now

I just started doing ochem (synthetic chem) research this semester (hopefully will continue it in an internship this summer), and it's pretty cool stuff. Medical research also looks cool, but I think I'm going to continue doing synthetic research 👍
 
You're studying silyl ethers as protecting groups? Isn't that a bit advanced?

Is it? I have no idea. This is the only ochem class I've taken!

Edit: except for ochem 1, obvs. I just mean that I don't know what's normally taught.
 
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