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rakuenso

1,2 diisopropylethene

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What does this thing look like? When I draw it out I keep getting a carbon chain of >2... also, What does (Z) , (E) mean? different conformations?

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Well... first of all, I think you'd need it to be either in the cis or trans comformation to draw it. Secondly I think id' give it another name, because it's necessary to follow the longest carbon chain.. say 2,5-dimethyl-6-hexene.

 

(z) or (e) means zuzammen or entgegen and is used to describe the conformation around a double bound if the are 3 or more groups around it. Normally you use cis-trans if there is are two groups and two hydrogen ions, but if there are more E-Z can be used to priotize the groups... can't remember the priority rules right now, but you can look it up in any textbook.

 

The attached file shows trans-2,5-dimethyl-6-hexen (or trans-1,2-diisopropylethene)

mol.JPG

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