PREPARATION OF ALDEHYDES AND KETONES CLASS XII. PREPARATION.

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Presentation transcript:

PREPARATION OF ALDEHYDES AND KETONES CLASS XII

PREPARATION

ALDEHYDE PREPARATION

SIDE CHAIN HALOGENATIONHYDROLYSIS

GATTERMAN-KOCH

PREPARATION OF KETONE

2.FROM NITRILE

FRIEDELCRAFT ACYLATION

Nucleophilic addition -cynanohydrin

2.Addition of sodium bisulphite

3.Addition of alcohols

Addition of ammonia derivatives

2.reduction

3.oxidation

ii.Fehlings test

iii.haloform(iodoform)

Alpha hydrogen-acidity

Aldol condensation

Cross –aldol condensation

Cannizaro reaction

3.Electrophilic substitution

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