Question

Wood ward feiser rule for alpha beta carbonyl compound

Answer 1

Here is your answer ⤵⤵⤵

Woodward-Fieser rules can be extended to calculate the λmax of α,β-unsaturated carbonyl compounds. In a similar manner to Woodward rules for dienes discussed previously, there is base value to which the substituent effects can be added and the λmax can be calculated using the formula:

λmax = Base value + Σ Substituent Contributions + Σ Other Contributions

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