Reactions of Aldehydes
and Ketones Compounds - II
Using the drawing pallet on the right, draw the structure
of the major organic product for the reaction shown below:
Hydroxylamine reacts with ketones to from simple oximes (carbon-nitrogen double bond and the nitrogen is bonded to a hydroxyl group).
Using the drawing pallet on the right, draw the structure
of the major organic product for the reaction shown below (show stereochemistry):
Semicarbazide reacts with simple ketones to form a semicarbazone (a common crystalline derivative of aldehydes and ketones).
Using the drawing pallet on the right, draw the structure
of the major organic product for the reaction shown below:
2,4-Dinitrophenylhydrazine reagent reacts with ketones to form 2,4-dinitrophenylhydrazones (a common derivative of aldehydes and ketones which is typically insoluble in the reaction medium used, hence a thick yellow precipitate forms; the reaction is a good qualitative test for the presence of the aldehyde and ketone functional group in unknown compounds).
Using the drawing pallet on the right, draw the
structure of the major organic product for the reaction
shown below:
Simple amines adds to ketones & aldehydes to form
imines (a carbon-nitrogen double bond and the
nitrogen is bonded to the alkyl group).
Using the drawing pallet on the right, draw the structure
of the major organic product for the reaction shown below:
Simple aryl amines adds to ketones & aldehydes to form
aryl imines or anilides (a carbon-nitrogen double bond and the
nitrogen is bonded to the aryl group).
Using the drawing pallet on the right, draw the structure
of the major organic product for the reaction shown below:
Secondary amines will react with ketones and aldehydes to form immonium cations which tautomerize into the corresponding enamine.
Using the drawing pallet on the right, draw the structure
of the major organic product for the reaction shown below:
Ketones react with hydrazine to form intermediate hydrazones which decompose in strong base to convert the ketone into the saturated hydrocarbon (the Wolf-Kischner reaction).
Using the drawing pallet on the right, draw the structure
of the major organic product for the reaction shown below:
Ketones react with hydrazine to form intermediate hydrazones which decompose in strong base to convert the ketone into the saturated hydrocarbon (the Wolf-Kischner reaction).
Using the drawing pallet on the right, draw the structure
of the major organic product for the reaction shown below:
In the presence of an acid catalyst, alcohols react with
ketones & aldehydes to form ketals and acetals (a
1,1-diether). This is an equilibrium reaction and can be driven to completion in the presence of a large excess of alcohol.
Using the drawing pallet on the right, draw the structure
of the major organic product for the reaction shown below.
In the presence of an acid catalyst, alcohols react with
ketones & aldehydes to form ketals and acetals (a
1,1-diether). This is an equilibrium reaction and can be driven to completion in the presence of a large excess of alcohol.
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