Chem 3B help please... test on Monday FML.

<p>hey calbear, look at page 626 in the orgo book. after i studied that picture, i got all of the stereochemistry of DA problems correct…</p>

<p>I mean the carbonyl stuff he went over on Thursday that isn’t on the midterm. The carbonyl stuff on the midterm seems pretty simple, just oxidizing alcohols. I’m talking about the cyclichemiacitals, equilibrium and pH stuff…ugh I’m getting flashbacks of Chem 1A.</p>

<p>Oh yeah I saw that when reading the Diels-Alder section. The diagram is pretty handy, but I still trip up when the molecule is giant and complicated and has a weird ass configuration. I just hope he puts bicyclic compounds and not anything more complex…but he probably wont.</p>

<p>calbear do u know if we have to know the extraneous info about the molecules of the day? i.e. musk perfume, beetles, etc.</p>

<p>Uh I’m pretty sure we need to know how to apply the MOD with what we have learned. Like know how to use NADPH to reduce a molecule, use nomenclature rules we learned to be able to name gyrinidal (I feel nice today: (E,E,E)-3,7-dimethyl-8,11-dioxo-2,6,9-dodecatrienal) and stuff like that.</p>

<p>@Batman for number 302, the OH is protonated, and the HSO4- anion E2 eliminates it, forming a double bond in the center. The O3 breaks this DB, and the wolff-kishner reagent reduces the resulting carbonyls.</p>

<p>Is it just me or does it seem like everybody is pretty on top of this class. Everybody I talk to in class and my friends seem to have a pretty solid grasp on the material…I’m sensing a pitiful curve -_-</p>

<p>i think you have smart friends lol</p>

<p>I’m scared my fellow CCers. Everyone does seem to know what is going on in that class. Damn it.</p>

<p>Oh and mech another example of MOD as said in the review today was that he might ask what molecules are aromatic and you just look at the ring…</p>

<p>****kkkkkkkkk meeeeeeeeeeeeee</p>

<p>I feel like the test is gonna be harder than the problem sets. the problem sets are so chill… unlike the test is so nerve racking</p>

<p>I’m feeling Pederson as the tricky kind. Like he wants us to figure shiet out with something we’ve seen before</p>

<p>who’s going to sleep here?</p>

<p>I’m not sleeping. I’m really scared, actually…</p>

<p>Me! After studying for physics 8b I just want to collapse…I’d take mechanism and reactions over electrostatic induction any day…god I hate physics.</p>

<p>i thought 8b was thursday…well 8a is thursday. is 8b tuesday?</p>

<p>tests aren’t harder than the problem sets lol although there will definitely be stuff we haven’t seen before</p>

<p>what are you guys doing for the molecules of the day?</p>

<p>Not really sure what to do with it…study it and figure how he might use it…hmm</p>

<p>and for DA reactions, so endo rxn is when the substituents are opposite (pointing towards the diene) while exo is away yes?</p>

<p>I just woke up it feels pretty sweet. Endo usually refers to when the substituents of the dienophile are pointing in towards the diene (Endo = in) and exo is when it’s pointing away (Exo=out). More like a point of reference. 8B for Deweese is on Thursday, btu I seriously don’t know **** for that class. My level of physics knowledge is like 1/790th of o-chem. I just don’t get electricity and magnetism and my bio lab is making me read hella for the quiz. I swear bio 1b is like a small annoying rash that wont go away.</p>