Advertisements
Advertisements
प्रश्न
Compound ‘A’ was prepared by oxidation of compound ‘B’ with alkaline \[\ce{KMnO4}\]. Compound ‘A’ on reduction with lithium aluminium hydride gets converted back to compound ‘B’. When compound ‘A’ is heated with compound B in the presence of \[\ce{H2SO4}\] it produces fruity smell of compound C to which family the compounds ‘A’, ‘B’ and ‘C’ belong to?
Advertisements
उत्तर
When alkaline \[\ce{KMnO4}\] oxidises compound ‘B’ with compound ‘A’, acid is formed.
\[\ce{B ->[{[O]}][alkaline KMnO4] A -> acid}\]
When compound ‘A’ is reduced with \[\ce{LiAlH4}\], it transforms into compound ‘B’. The letter ‘B’ stands for a type of alcoholic beverage.
\[\ce{A ->[LiAlH4] B -> Alcohol}\]
When compounds ‘A’ and ‘B’ are heated with conc. \[\ce{H2SO4}\], compound ‘C’ is formed which has a fruity odour.
\[\ce{A + B ->[A][H2SO4] fruitysmell (ester)}\]
APPEARS IN
संबंधित प्रश्न
How will you convert ethanal into the following compound?
But-2-enal
Write structural formulas and names of four possible aldol condensation products from propanal and butanal. In each case, indicate which aldehyde acts as nucleophile and which as electrophile.
Describe the following:
Cross aldol condensation
Complete the synthesis by giving missing starting material, reagent or product.
\[\begin{array}{cc}
\ce{C6H5CHO}\phantom{............}\\
\phantom{........}\ce{+\phantom{......}\ce{->[dil.NaOH][\Delta]}}\phantom{...}\\
\ce{CH3CH2CHO}\phantom{............}
\end{array}\]
Cannizaro’s reaction is not given by ______.
Which of the following conversions can be carried out by Clemmensen Reduction?
(i) Benzaldehyde into benzyl alcohol
(ii) Cyclohexanone into cyclohexane
(iii) Benzoyl chloride into benzaldehyde
(iv) Benzophenone into diphenyl methane
What product will be formed on reaction of propanal with 2-methylpropanal in the presence of \[\ce{NaOH}\]? What products will be formed? Write the name of the reaction also.
Why are carboxylic acids more acidic than alcohols or phenols although all of them have hydrogen atom attached to a oxygen atom \[\ce{(-O-H)}\]?
Assertion: The α-hydrogen atom in carbonyl compounds is less acidic.
Reason: The anion formed after the loss of α-hydrogen atom is resonance stabilised.
Cross aldol condensation occurs between
Identify A and B from the following reaction:
\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{....................}\\
\phantom{}\ce{2CH3 - C = O ->[Ba(OH)2] A ->[Δ] B + H2O}
\end{array}\]
Convert the following:
Acetaldehyde to But-2-enal
The major product of the following reaction is:
Explain the aldol condensation of ethanal.
Which of the following does not give aldol condensation reaction?
Which of the following compounds will undergo self-condensation in the presence of dilute NaOH solution?
Why is the α-hydrogens of aldehydes and ketones are acidic in nature?
Write a note on the aldol condensation reaction of acetaldehyde.
