Best yield for single alkene

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Awuah29

Christian predent
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Heh guys,
why is the answer here 5 . I thought it was 1. Can someone explain.
thanks

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RXN #1 and #4 will give you the same product as reactants...so thats out of the question...RXN #3 will does a substiution RXN or even an elimation RXN which will give you two alkene product or a single substitution RXN

so now youre down to RXN 2 and 5...if you can see RXN 2 its a primary so it has to go to SN2 or Elimation...but it will give you two products also depending on the adjacent hydrogens you want to take....so that leaves us with RXN #5...no matter what hydrogen you take from any of the adjacent carbons it will give you 1 product and 1 product only
 
RXN #1 and #4 will give you the same product as reactants...so thats out of the question...RXN #3 will does a substiution RXN or even an elimation RXN which will give you two alkene product or a single substitution RXN

so now youre down to RXN 2 and 5...if you can see RXN 2 will give you two products a major and minor product....depending on the hydrogen you want to take...so that leaves us with RXN #5...no matter what hydrogen you take from any of the adjacent carbons it will give you 1 product and 1 product only

Thanks, soo much makes now sense to me!:thumbup:
 
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