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प्रश्न
How will you prepare cinnamic acid from benzaldehyde?
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उत्तर
Conversion of benzaldehyde into cinnamic acid:
\[\begin{array}{cc}
\phantom{....}\ce{COOH}\phantom{...............}\ce{COOH}\phantom{......}\\
\phantom{....}/\phantom{.....................}/\phantom{.............}\\
\ce{\underset{(Benzaldehyde)}{C6H5CH = O} + H2C ->[Pyridine][-H2O] C6H5CH = C ->[\Delta][-CO2] \underset{(Cinnamic acid)}{C6H5CH = CH} - COOH}\\
\phantom{....}\backslash\phantom{.....................}\backslash\phantom{.............}\\
\phantom{}\ce{\underset{(Malonic acid)}{COOH}}\phantom{.............}\ce{COOH}\phantom{....}
\end{array}\]
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संबंधित प्रश्न
The product formed after reaction between benzaldehyde and methyl magnesium iodide followed by acid hydrolysis is ____________.
The first oxidation product of secondary alcohols is ____________.
Predict the product Z in the following series of reactions.
\[\ce{Ethanoic acid ->[PCl5] X ->[C6H6][Anhydrous AlCl3] Y ->[i) CH3MgBr][H3O^+] Z}\]
Identify the product formed in the reaction.
Identify A, B and C.
How will you convert benzaldehyde into the following compound?
Benzophenone
What is the action of HCN on propanone?
Identify A, B and C.
Write the structure of the products obtained from the following ketones by action of hydrazine in presence of strong base KOH.
How will you prepare Acetic anhydride from acetic acid.
