<p>oops i think NC is cyanide, I don’t see any NME as op director though.
Uhmm Reduce carboxylic acids: nothing I believe is correct. Won’t we be dealing mainly with carbonyls? And then NH4 is the wolff-kirshner rxn…which only works for acylcarbonyls?</p>
<p>are you sure u got the page number correct?</p>
<p>what does it mean when it says “dictation?” i think its problem 4) b or d.</p>
<p>that’s “di-cation” lol, i got confused too at first</p>
<p>298 B mechrocket. I was just saying i didn’t know Nme is an op director because I couldn’t see it in my notes.</p>
<p>yo shaq, you were in pedersen’s 3A class before right? </p>
<p>do you know how the molecule of the day is going to work? do we have to know all that info (for example, which molecule is in musk perfume, etc) he talked about in class? or is it just gonna be giving us a molecule of the day in a problem to do mechanisms or wutever on?</p>
<p>gagaga did you go to the review today mech?</p>
<p>oh and for carbonyls, do we need to know how to draw the energy level diagram?</p>
<p>i didn’t even know there was a review today, but i probably wouldn’t have gone lol</p>
<p>i didn’t see a problem involving carbonyls energy levels so i don’t think so</p>
<p>batman do you know the answer to my Molecule of the Day question?</p>
<p>Well I don’t know for sure. But it seems to me that it used to be Molecule of Day was just “free points” where you just know information about it (as seen in the exam book), but he changed it so as to incorporate into the test…? So I’m not too sure whether we still need to know information about them or just figure out how he could use pieces of the molecules to test us.
Does Pederson have any like retrosynthesis problems like the ones Frechet did? (You start off with this material and show how to get to the product other than just listing reagents…I didn’t see any in the exam book)</p>
<p>don’t think so</p>
<p>10 b for the carbonyl, what happened to the original H on the aldehyde…</p>
<p>haven’t gotten there yet, currently re-doing problem set #2</p>
<p>thanks mech! for the MOD he’s probably going to have the structure for us and then have us do a problem with it, probably mechanism, synthesis, huckel’s rules, etc. whatever crazy hard thing he can think of. midterm # 2 last semester was hard. MOD’s were a ***** esp. that last problem for me.</p>
<p>did you guys have to know all the stuff he said in class about them though?</p>
<p>it would save me some time if i didn’t have to go thru my notes memorizing that stuff =/</p>
<p>dubya tf i’m getting owned by ozonolysis in this last problem set</p>
<p>@ Batman for 10b in the reaction we use PCC. A thing to remember is when oxidizing secondary alcohols (2ndary because we added an ethyl group) that there MUST be a hydrogen to work. In the reaction PCC uses the hydrogen to form the ketone from the alcohol.</p>
<p>hmm okay…v. good tip thanks.
for 302 b, i can’t break the cyclopentanes…I looked in the answer book:
So h2so4 protonates the OH which leaves as water and a plus charge in between…Ozonolysis with MeS2 breaks the molecule and NH4 reduces double bond Os from the previous process…am I thinking of this synthesis incorrectly?</p>
<p>Anybody else freaking out? My downfall tomorrow will probably have something to do with Diels-Alder stereochem. Is it just me or is the material after the 1st midterm like the carbonyl stuff look hard? They always say his second midterm is the hardest. I hope I do well on the first so as to soften the blow when I fail the 2nd one.</p>
<p>but we need to know the carbonyl stuff…and I don’t really get stereochem lol</p>