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Chem Help! Reactions such as SN1 and SN2

W

webnewland

Golden Member
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?
 
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 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.
 
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?
 
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