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Question
Write reaction showing aldol condensation of cyclohexanone.
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Solution
RELATED QUESTIONS
Answer in brief.
Observe the following equation of reaction of Tollens' reagent with aldehyde. How do we know that a redox reaction has taken place? Explain.
\[\ce{R-CHO + 2Ag(NH_{3})^{+}_{2} + OH^{-}->[\triangle] R-CO{O}^{-} + 2Ag↓ + 4NH3 + 2H2O}\]
Write another name of disproportionation reaction?
Explain haloform reaction with suitable example.
Which of the following compounds does NOT undergo aldol condensation?
\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{.................}\ce{R}\phantom{..}\ce{H}\phantom{................}\\ \phantom{...}\backslash\phantom{..................}\backslash/\phantom{..........}\phantom{.......}\\ \ce{C = O ->[H2NNH2][KOH/glycol] C + N2 + H2O}\\ \phantom{}/\phantom{............}\phantom{.......}/\phantom{}\backslash\phantom{...............}\\ \phantom{}\ce{R}\phantom{..................}\ce{R}\phantom{..}\ce{H}\phantom{...............} \end{array}\]
Reaction is called ____________.
The first oxidation product of secondary alcohols is ____________.
Which of the following carbonyl compounds does NOT undergo aldol condensation?
Which of the following reagents is used for the following conversion?
\[\ce{CH3 - CH = CH - CHO -> CH3 - CH = CH - CH2OH}\]
What is the action of HCN on propanone?
What is the action of HCN on ethanal?
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
How is the following conversion effected propanal into butanone?
Complete the following reaction.
\[\begin{array}{cc}
\ce{CH3 - CH2 - CH2 - C - CH3 ->[HO - CH2 - CH2 - CH2 - OH][dry HCl] ?}\\
||\phantom{.........}\\
\ce{O}\phantom{.........}
\end{array}\]
How will you prepare lactic acid from ethanol?
How will you prepare cinnamic acid from benzaldehyde?
How will you prepare acetaldehyde from ethyne?
How propanal is converted into propane.
Which of the following reaction does not involve either oxidation or reduction?
Aldehydes are readily oxidised to yield carboxylic acids but ketones are inert to oxidation. Which is the most likely explanation regarding this difference in reactivity?
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.
Write the structure of the products obtained from the following ketones by action of hydrazine in presence of a slightly acidic medium.
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.
How will you prepare Acetic anhydride from acetic acid.
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
Which from following tests confirms presence of aldehydic group in glucose?
Nitration of the compound is carried out; this compound gives a red-orange ppt. with 2,4-DNP, this compound undergoes the Cannizzaro reaction but not aldol, then possible product due to nitration is:
