Chem Help! Reactions such as SN1 and SN2

[webnewland]

I have been reviewing over sn1 and sn2 reactions, most of which are substitution, like a leaving group leaves and a nuclophile comes in. But I came across another situation, where it was not substitution, but making and breaking of c-c bond.
For example

methyl-cyclobutene + h2 -----> methyl-cyclobutane

where the double bond of the c=c changed to c-c
anyone know why this happens in sn1 and sn2 reactions?

 

[glen]

elimination

 

[minendo]

<< elimination >>


good old e1 and e2 reactions

God I hate organic chem.

 

[glen]

I always heard how hard it was supposed to be.
I would not say it was nearly one of my most difficult classes.
I got an A.

 

[minendo]

<< I always heard how hard it was supposed to be.
I would not say it was nearly one of my most difficult classes.
I got an A. >>


I took the Organic Chem Honors class for chemical engineers. I wanted to shoot myself.

 

[webnewland]

So Basically if Hydrogen was the leaving group, nothing will replace it and the double bond between the carbons is formed to compensate for the loss of the H?

 

[glen]

well, that would be an oxidation/reduction reaction