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How do you explain the difference in colors between the hydrazone product formed from simple aldehyde/ketone and aromatic aldehyde/ketone (yellow vs orange) in Dinitrophenylhydrazine Test?

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter16: Chemistry Of Benzene: Electrophilic Aromatic Substitution

Section16.SE: Something Extra

Problem 34MP: Using resonance structures of the intermediates, explain why bromination of biphenyl occurs at ortho...

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Question

How do you explain the difference in colors between the hydrazone product formed from simple aldehyde/ketone and aromatic aldehyde/ketone (yellow vs orange) in Dinitrophenylhydrazine Test?

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

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