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प्रश्न
Explain the following reaction:
Cannizzaro reaction
Explain the following reaction and write the chemical equation involved:
Cannizzaro reaction
Explain cannizzaro reaction with suitable example.
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उत्तर
Aldehydes, which do not contain an α-hydrogen atom, undergo self-oxidation and reduction (disproportionation) reaction on heating with concentrated alkali (NaOH/KOH) to form an alcohol and a carboxylic acid salt.
\[\ce{\underset{Benzaldehyde}{2C6H5CHO} + NaOH -> \underset{Benzyl alcohol}{C6H5CH2OH} + \underset{Sodium benzoate}{C6H5COONa}}\]
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संबंधित प्रश्न
Complete the following reactions:
Write a note on the self oxidation-reduction reaction of an aldehyde with a suitable example.
Write the chemical equations to illustrate the following name reaction:
Cannizzaro’s reaction
An organic compound with the molecular formula C9H10O forms 2, 4-DNP derivative, reduces Tollens’ reagent and undergoes Cannizzaro reaction. On vigorous oxidation, it gives 1, 2-benzenedicarboxylic acid. Identify the compound.
Write the reactions involved in the following reactions: Clemmensen reduction
Write the equation involved in the following reaction:
Etard reaction
Complete the following reactions:
Complete the following reactions:
Write the chemical equations to illustrate the following name reactions:
Aldol condensation
complete the following reaction:
\[\begin{array}{cc}
\phantom{...}\ce{CH3} \\
| \\
\phantom{.................}\ce{CH3-CH-COOH ->[(i) Br2/Red P4][(ii)H2O]}
\end{array}\]
Complete the following reaction:
The products obtained in the Cannizzaro reaction are
The key step in cannizzaro reaction in the inter molecular shift qf
What happens when methanal undergoes cannizzaro reaction?
In the Cannizzaro reaction given below:
\[\ce{2Ph-CHO ->[OH^-] Ph-CH2OH + PhC\overset{-}{O}_2}\]
the slowest step is:
Which of the following does not give Cannizzaro reaction?
Convert the following:
Benzene to m-nitrobenzaldehyde
Write the chemical reaction involved in Cannizzaro reaction of methanal.
Calcium acetate, on heating, gives:
Benzaldehyde can be prepared by the hydrolysis of:
Which product is formed when the compound benzaldehyde is treated with concentrated aqueous KOH solution?
