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प्रश्न
How will you convert ethanal into the following compound?
Butane-1, 3-diol
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उत्तर
\[\ce{\underset{Ethanal}{2CH3CHO}->[Dil.NaOH][Aldol condensation]\underset{3-Hydroxybutanal}{\overset{4}{C}H3\overset{3}{C}HOH - \overset{2}{C}H2 - \overset{1}{C}HO}->[NaBH4][(Reduction)]\underset{Butane-1, 3-diol}{\overset{4}{C}H3 - \overset{3}{C}HOH - \overset{2}{C}H2 - \overset{1}{C}H2OH}}\]
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संबंधित प्रश्न
Write the products formed when CH3CHO reacts with the following reagents: CH3CHO in the presence of dilute NaOH
How will you bring about the following conversion in not more than two steps?
Ethanol to 3-Hydroxybutanal
Why is alpha (α) hydrogen of carbonyl compounds acidic in nature?
What is substituted imine called?
Explain aldol condensation reaction in detail.
Cannizaro’s reaction is not given by ______.
Which product is formed when the compound 
is treated with concentrated aqueous \[\ce{KOH}\] solution?
Compounds A and C in the following reaction are:
\[\ce{CH3CHO ->[(i) CH3MgBr][(ii) H2O] (A) ->[H2SO4, Δ] (B) ->[Hydroboration oxidation] (C)}\]
Why is there a large difference in the boiling points of butanal and butan-1-ol?
Assertion: Aromatic aldehydes and formaldehyde undergo Cannizaro reaction.
Reason: Aromatic aldehydes are almost as reactive as formaldehyde.
Cross aldol condensation occurs between
Which of the following gives aldol con~ensation reaction?
Convert the following:
Acetaldehyde to But-2-enal
Predict the reagent for carrying out the following transformations:
Ethanal to 3-hydroxy butanal
\[\ce{CH3-CH2-CHO ->[dil][alkali] Product}\]
The product in the above reaction is:
Why is the α-hydrogens of aldehydes and ketones are acidic in nature?
Identify A and B:
What is aldol condensation? Explain it with suitable examples.
Which one of the following undergoes reaction with 50% sodiumhydroxide solution to give the corresponding alcohol and acid:
