Question
$1,3,5-$ Hexatriene has $\lambda_{\max }=258 \mathrm{nm} .$ In light of your answer to Problem 14.41, approximately where would you expect 2,3 -dimethyl- 1,3,5 -hexatriene to absorb?
Step 1
In the case of 1,3,5-hexatriene, it has a conjugated system of 4 pi electrons which results in an absorption maximum at 258 nm. Show more…
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