[fetusinprogress]

Could someone help me on drawing the following structures?

1) meso-3,4-dibromohexane
2)  cyclopentene oxide
3) trans-1,2-dibromopentane
4)  Z-2-phenyl-2-butene
5) meso-3,4-hexanediol
6) R-2-ethylpentanenitrile
7) acetaldehyde + propionaldehyde
 propyne + isobutylene

[Arkcon]

Yes.  I recognize their names, so I could.  Next question. 




OK, jus' playin' with you, we do like to see a little effort on these boards, so take some stabs, make some drawings in a paint program and post 'em, or let us know where you're stuck.  There are always noobs who dump complete answers to any question asked, presumably for empathic brownie points.  But even they get bored quickly, and stop answering large stacks like yours.

[agrobert]

http://en.wikipedia.org/wiki/Acetaldehyde

[Arkcon]

http://en.wikipedia.org/wiki/Acetaldehyde

5 bucks says your answer earns you a "not good enough" from the original poster.

[fetusinprogress]

can you tell me how to upload from my paint program?

[Borek]

Save as gif, click on Additional options below edit field when posting.

[fetusinprogress]

[fetusinprogress]

ok here is what i have so far

[Arkcon]

For cyclopentene oxide, I like the first one better than the second one, your instincts are correct -- it's name starts with pent-, and cyclo, so you've made a circular 5 carbon ring.  Don't forget the -ene, though.  Also, you've drawn the oxygen as a carbonyl group, and compounds with those don't bear the name oxide.  If you have to guess, can you think of another common organic oxide, and look up it's structure.

[fetusinprogress]

i looked up nitric oxide...am i lacking a bond?

[Arkcon]

i looked up nitric oxide...am i lacking a bond?

No, that's an inorganic oxide, I meant something else, made of carbon and hydrogen, with the name "oxide"

[fetusinprogress]

I am kind of numb and feeling more confused now than when I started 

[Borek]

http://en.wikipedia.org/wiki/Ethylene_oxide

[fetusinprogress]

revised...is this right

[Arkcon]

http://en.wikipedia.org/wiki/Ethylene_oxide

It was hard to find that one (or any other organic oxide)by searching for "oxide", I'm guessing that is an informal name.  But that was the molecule I was going for.