Choose the incorrect statements: * a-Aldol is syrupy liquid β-hydroxy aldehyde or β-hydroxy ketone b-Aldol on heating eliminates water by E1cB mechanism c-On heating it gives back aldehyde and ketone d-On heating it give α,β-unsaturated aldehyde and α,β-unsaturated ketone

Choose the incorrect statements: * a-Aldol is syrupy liquid β-hydroxy aldehyde or β-hydroxy ketone b-Aldol on heating eliminates water by E1cB mechanism c-On heating it gives back aldehyde and ketone d-On heating it give α,β-unsaturated aldehyde and α,β-unsaturated ketone

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter23: Carbonyl Condensation Reactions

Section23.3: Dehydration Of Aldol Products: Synthesis Of Enones

Problem 4P

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Concept explainers

Reactions at the Alpha Carbon Atom

The position next to the ketone or aldehyde functional group is termed as alpha position and the reaction which occurs at alpha position is called alpha substitution reaction. In an alpha substitution reaction, the alpha proton atom is substituted by an electrophile by the formation of an enol intermediate or enolate ion intermediate. Most of the carbonyl compounds go through an alpha substitution reaction.

Question

Choose the incorrect statements: *

a-Aldol is syrupy liquid β-hydroxy aldehyde or β-hydroxy ketone

b-Aldol on heating eliminates water by E1cB mechanism

c-On heating it gives back aldehyde and ketone

d-On heating it give α,β-unsaturated aldehyde and α,β-unsaturated ketone

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

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