Advertisements
Advertisements
प्रश्न
How are the following compounds prepared?
benzaldehyde from benzoyl chloride
Advertisements
उत्तर
Benzaldehyde from benzoyl chloride
Rosenmund Reduction
APPEARS IN
संबंधित प्रश्न
Acetaldehyde, when treated with which among the following reagents does NOT undergo addition reaction?
(A) Ammonia
(B) Hydroxylamine
(C) Ammoniacal silver nitrate
(D) Semicarbazide
Draw the structure of the semicarbazone of ethanal.
Predict the product of the following reaction:
Predict the product of the following reaction:
\[\begin{array}{cc}
\phantom{..............}\ce{O}\\
\phantom{..............}||\\
\ce{R - CH = CH - CHO + NH2 - C - NH - NH2 ->[H+]}\end{array}\]
What is meant by the following term? Give an example of the reaction in the following case.
Acetal
What is meant by the following term? Give an example of the reaction in the following case.
Semicarbazone
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.
Oxime
What is meant by the following term? Give an example of the reaction in the following case.
Imine
Predict the products formed when cyclohexanecarbaldehyde reacts with the following reagents.
PhMgBr and then H3O+
Acetaldehyde, Acetone, Di-tert-butyl ketone, Methyl tert-butyl ketone (reactivity towards HCN)
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.
Write balanced chemical equations for action of ammonia on - acetone
Write the structure of Phenylmethanamine.
Acetone, Acetaldehyde, Benzaldehyde, Acetophenone – reactivity towards addition of HCN.
Write a test to differentiate between pentan-2-one and pentan-3-one.
Identify the compounds A, B and C in the following reaction.
\[\ce{CH3 - Br ->[Mg/ether] (A) ->[(i) CO][(ii) Water] (B) ->[CH3OH/H+][Δ] (C)}\]
A Idol condensation will not be observed in
Paraldehyde is formed as a result of polymerisation:-
Which among the following is most reactive to give nucleophilic addition?
Write the name of product formed, when acetone is treated with 2, 4-dinitrophenyl hydrazine.
Out of p-tolualdehyde and p-nitrobenzaldehyde, which one is more reactive towards nucleophilic addition reactions, why?
Draw structure of the following derivative.
Acetaldehydedimethylacetal
Draw the structure of the following derivative.
Acetaldehydedimethylacetal
Draw structure of the following derivative:
Acetaldehydedimethylacetal
Draw structure of the following derivative:
Acetaldehydedimethylacetal
Give an example of the reaction in the following case.
Imine
