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प्रश्न
Write the name of the product when ketones react with 1,2-diol in presence of dry HCl.
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उत्तर
The product obtained when ketones react with 1,2-diol in presence of dry HCl is known as cyclic ketal.
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संबंधित प्रश्न
Answer in brief.
Write reaction showing conversion of Acetaldehyde into acetaldehyde dimethyl acetal.
_____________ reaction is used to synthesize straight alkyl substituted benzenes.
Write a reaction to distinguish acetaldehyde from acetone
Which of the following is Schiff's reagent?
Identify A in the following reaction.
\[\ce{A + CH3MgBr ->[Ether] complex ->[H3O+] (CH3)3C - OH}\]
Which of the following gives red precipitate with Fehling's solution?
If acetaldehyde is treated with Fehling's solution, the change that occurs in the system is ____________.
Which of the following represents the structure of isopropyl methyl ketone?
The compound which does NOT undergo haloform reaction is ____________.
Which of the following is Clemmensen reduction?
Predict the product Z in the following series of reactions.
\[\ce{Ethanoic acid ->[PCl5] X ->[C6H6][Anhydrous AlCl3] Y ->[i) CH3MgBr][H3O^+] Z}\]
Assertion: 2, 2-dimethyl propanoic acid does not give HVZ reaction.
Reason: 2-2, dimethyl propanoic acid does not have α-hydrogen atom.
Which of the following represents the correct order of acidity in the given compounds.
\[\ce{CH3Br ->[KNC] (A) ->[H3O^+] (B) ->[PCl5] (C)}\] product (C) is:
Assertion: p-N, N-dimethyl amino benzaldehyde undergoes benzoin condensation
Reason: The aldehydic (−CHO) group is meta directing.
Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their ____________.
How will you prepare acetic anhydride from acetic acid?
How will you prepare ethyl acetate from methyl acetate?
How will you prepare malachite green from benzaldehyde?
How propanal is converted into propane.
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
A carbonyl compound A having molecular formula C5H10O forms crystalline precipitate with sodium bisulphate and gives positive iodoform test. A does not reduce Fehling solution. Identify A.
Give two examples which undergo Wolf-Kishner reduction.
Write a note on Clemmensen reduction.
Identify B in the following reaction:
\[\begin{array}{cc}
\ce{O}\phantom{........}\\
||\phantom{........}\\
\ce{\underset{(Acetone)}{CH3 - C - CH3}->[CrO3] B}
\end{array}\]
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
How will you prepare Acetic anhydride from acetic acid ?
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
