[Argon]

[quote="con Brio":34a7b]Argon,

how can one easily tell apart if a rxn is to be Sn1, Sn2, E1, or E2???? I get those all mixed up. oOo: thx[/quote:34a7b]


I am a 5th year graduate student "hopefully" getting my Ph.D this may in Organic polymer chemistry.

Substitution, is just that you substitute one group for another.
ie nucleophilic displacement of a halogen(Br, I) by nucleophile(OH-, CN-)

Elimination is removing something (usually H, by a Base) to form an unsaturated double or triple bond.
ie the removal of an Acidic proton followed by Beta elimination of some sort of leaving group to give an unsaturated bond.

1 vs 2. 1 means that it is a step-wise reaction, ie A happens then B happens (Not at the same time). 2 means that they happen simultaneously. Their are many factors that favor 1st order or 2 nd order reaction rates (the are too numerous to mention here) but it has to do with stability of the leaving group, solvent polarity, stability of the formed Ionic species, etc..

Ok email or PM met, it might be easier than putting everyone else through Organic 101. Its also a lot easier if you can see the reactions on the paper instead of someone explaining. I have some good tutorials that I use with my undergrads I can send along.

[con Brio]

Thanks. happy:

i never thought i'd find intelligent life on these forums.

[Argon]

[quote="con Brio":0f43b]Thanks. happy:

i never thought i'd find intelligent life on these forums.[/quote:0f43b]

I wouldn't go that far.............

[Tripper]

BAHAH! My Exams finished a MONTH ago...Not to mention school ended TWO WEEKS ago....From here till early febuary is clear, partying, drinking, pimping, generally having a GREAT time.....Either that, or I'll just be sitting at the computer. biggrin:

[Chavez]

I fucked up in my GCSE's and had to do GNVQ i fucked up in that and now I'm doing AS-Level. I think I'm going to fuck up in that too.

I don't bother with revising for Mock exams. If you get an F so what? swordfight:

[SoLiDUS]

Did my final math exam today - what a joke. Now I can relax until January:
I have two more math classes to do! I'll take the opportunity to learn Latin
and Greek, on top of reading so many books my prescription will probably
change...

Maybe I can get kickass looking glasses like these --> cool:

[The Counter-Sniper]

Let's see. Calculus, Classical Literature, one exam in Political Science. biggrin:

[descry]

ya im still in high school to. i got a english exam, biology exam, functions and relations (Math) exam, and a Canadian law exam. Bah

[pest]

[quote=Argon]

Originally Posted by "con Brio":59d0c

Argon,

how can one easily tell apart if a rxn is to be Sn1, Sn2, E1, or E2???? I get those all mixed up. oOo: thx

I am a 5th year graduate student "hopefully" getting my Ph.D this may in Organic polymer chemistry.

Substitution, is just that you substitute one group for another.
ie nucleophilic displacement of a halogen(Br, I) by nucleophile(OH-, CN-)

Elimination is removing something (usually H, by a Base) to form an unsaturated double or triple bond.
ie the removal of an Acidic proton followed by Beta elimination of some sort of leaving group to give an unsaturated bond.

1 vs 2. 1 means that it is a step-wise reaction, ie A happens then B happens (Not at the same time). 2 means that they happen simultaneously. Their are many factors that favor 1st order or 2 nd order reaction rates (the are too numerous to mention here) but it has to do with stability of the leaving group, solvent polarity, stability of the formed Ionic species, etc..

Ok email or PM met, it might be easier than putting everyone else through Organic 101. Its also a lot easier if you can see the reactions on the paper instead of someone explaining. I have some good tutorials that I use with my undergrads I can send along.[/quote:59d0c]

Ouch, my brain hurts now.

I am long past having exams, but I do have to prepare for a couple of upcomng audits as well as some managerial reports. Big fun.

Lets just hope those exams dont go to the wayside, and I see you in my office a few years from now -

[Old Reliable]

BOOYAH!!!! I have a stats test tomorrow and I haven't studied jack shit!!!!!!! goin on midnight!!!!

[con Brio]

[quote="Old Reliable":7a3e5]BOOYAH!!!! I have a stats test tomorrow and I haven't studied jack shit!!!!!!! goin on midnight!!!![/quote:7a3e5]


GOOD LUCK YOU'RE SO DEAD

[ninty]

I have an A in stats right now. Quiz tomorrow in it and then the final on the 12th.

I also write Accounting on the 11th and Marketing on the 19.

Last day of school is the 10th.

[Old Reliable]

ok well 1:30 and now time to study.....it's half open book anyways

[cameltoe]

Originally Posted by CoUbLaCkA

ya im still in high school to. i got a english exam, biology exam, functions and relations (Math) exam, and a Canadian law exam. Bah

aww poor freshman