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प्रश्न
How are the following compounds prepared?
benzaldehyde from benzene
उत्तर
(a) Benzaldehyde from benzene
Benzene
Gatterman Koch synthesis
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संबंधित प्रश्न
Write the structures of the main products when acetone (CH3 − CO − CH3) reacts with the following reagent :
H2N − NHCONH2/H+
Predict the product of the following reaction:
What is meant by the following term? Give an example of the reaction in the following case.
Hemiacetal
What is meant by the following term? Give an example of the reaction in the following case.
Imine
What is meant by the following term? Give an example of the reaction in the following case.
Schiff’s base
Give plausible explanation for the following:
Cyclohexanone forms cyanohydrin in good yield but 2, 2, 6 trimethylcyclohexanone does not.
Complete the synthesis by giving missing starting material, reagent or product.
How are the following compounds prepared?
acetophenone from benzene
How are the following compounds prepared?
benzaldehyde from benzoyl chloride
Write balanced chemical equations for action of ammonia on - acetone
What are amines?
How will you convert benzoic acid to m-bromobenzoic acid?
Which of the following compounds is most reactive towards nucleophilic addition reactions?
Write a test to differentiate between pentan-2-one and pentan-3-one.
Carboxylic acids contain carbonyl group but do not show the nucleophilic addition reaction like aldehydes or ketones. Why?
Reaction of aqueous sodium hydroxide on chlorobenzene gives which of the following products?
A Idol condensation will not be observed in
Paraldehyde is formed as a result of polymerisation:-
Write the name of product formed, when acetone is treated with 2, 4-dinitrophenyl hydrazine.
What is the action of sodium hypoiodite on acetone?
Arrange the following in the increasing order of their property indicated:
Ethanal, Propanone, Propanal, Butanone (reactivity towards nucleophilic addition)
The product "P" in the above reaction is:
Aldehydes and ketones react with hydroxylamine to form ______.
Out of p-tolualdehyde and p-nitrobenzaldehyde, which one is more reactive towards nucleophilic addition reactions, why?
Draw the structure of the following derivative.
The ethylene ketal of hexane-3-one
Why dissociation of HCN is suppressed by the addition of HCL?
Draw the structure of the following derivative.
The ethylene ketal of hexan-3-one
Draw structures of the following derivatives.
Acetaldehydedimethylacetal
Give an example of the reaction in the following case.
Imine
