The Law Posted April 17, 2010 Report Share Posted April 17, 2010 How do you know which carbon will be the one attacked? Link to comment Share on other sites More sharing options...
peaceandlove Posted April 17, 2010 Report Share Posted April 17, 2010 http://www.youtube.com/watch?v=mymVqGMefdI Link to comment Share on other sites More sharing options...
The Law Posted April 17, 2010 Author Report Share Posted April 17, 2010 Thanks!!! 10charlimit Link to comment Share on other sites More sharing options...
UTPEOPLE Posted April 17, 2010 Report Share Posted April 17, 2010 Thanks!!! 10charlimit didnt you write already? aprils almost done you know... Link to comment Share on other sites More sharing options...
supafield Posted April 18, 2010 Report Share Posted April 18, 2010 there's a lot of good orgo videos on youtube... it helped me out a bunch. Link to comment Share on other sites More sharing options...
The Law Posted April 18, 2010 Author Report Share Posted April 18, 2010 didnt you write already? aprils almost done you know... Obviously not, otherwise why would I still be posting questions? there's a lot of good orgo videos on youtube... it helped me out a bunch. Ah, if only I had found this earlier! Link to comment Share on other sites More sharing options...
UTPEOPLE Posted April 18, 2010 Report Share Posted April 18, 2010 Obviously not, otherwise why would I still be posting questions? Pure academic curiosity? Link to comment Share on other sites More sharing options...
The Law Posted April 18, 2010 Author Report Share Posted April 18, 2010 Pure academic curiosity? lol, my desire for orgo knows no bounds. Link to comment Share on other sites More sharing options...
UTPEOPLE Posted April 18, 2010 Report Share Posted April 18, 2010 so when do you actually write? Link to comment Share on other sites More sharing options...
The Law Posted April 18, 2010 Author Report Share Posted April 18, 2010 Next week. Link to comment Share on other sites More sharing options...
UTPEOPLE Posted April 18, 2010 Report Share Posted April 18, 2010 Next week. Gasp! drink lots of fluids! Link to comment Share on other sites More sharing options...
estairella Posted April 18, 2010 Report Share Posted April 18, 2010 Law with one week to go, I would ease off on trying to figure out every little concept you missed. Maybe still do one or two full lengths but spend the downtime doing quick reviews of things you do know. And relax! /on the morning of my MCAT, I went through my hormone flashcards... So pointless Link to comment Share on other sites More sharing options...
rmorelan Posted April 18, 2010 Report Share Posted April 18, 2010 Next week. good luck! Link to comment Share on other sites More sharing options...
123coco Posted April 18, 2010 Report Share Posted April 18, 2010 I'm cheering for you law.....your determination and persistence is inspirational! Cheers! ________ Vaporizer Review Link to comment Share on other sites More sharing options...
The Law Posted April 18, 2010 Author Report Share Posted April 18, 2010 Thanks guys!! lol, I will try not to be too crazy and realize I can't possibly learn every single fact out there! haha. I just did a full length, and it went really well... so I'm hoping I can keep it up. I am still weaker in PS than the other sections, so will try to focus on that tonight and review. Link to comment Share on other sites More sharing options...
organiker Posted April 19, 2010 Report Share Posted April 19, 2010 How do you know which carbon will be the one attacked? Two different sets of conditions: Under basic conditions, opening the epoxide follows the same rules as an SN2: it goes after the least sterically hindered site. So for propylene oxide, for example, the nucleophile attacks the carbon on the end preferentially. Under acidic conditions, you protonate the epoxide oxygen and the situation resembles attack on a bromonium ion or mercuronium ion - it goes after the most substituted carbon, because that's the one that best stabilizes positive charge. Hope this is helpful - James Link to comment Share on other sites More sharing options...
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