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E and Z Stereoisomers

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The stereochemistry of the more highly substituted alkenes is difficult to define using the cis and trans designations. Therefore, a more systematic manner of indicating stereochemistry in these systems has been developed that uses an E and Z nomenclature. Draw the structures of the E and Z stereoisomers of 1,4-diphenyl-2-butene-1,4-dione. In this case, which is cis and which is trans?

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Solution Summary

Solution includes drawings for both structures and identification of cis and trans.

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