Which correct sequence of reactions are applied to achieve the following transformation?
To determine the correct sequence of reactions required to achieve the given transformation, we must understand the individual reactions involved and their specific roles.
The transformation involves converting benzoyl chloride to cinnamaldehyde. Let's break down the steps:
- Rosenmund's Reduction: This reaction is used to reduce acyl chlorides to aldehydes. Here, benzoyl chloride is reduced to benzaldehyde using hydrogen gas in the presence of palladium on barium sulfate (Pd-BaSO4).
- Claisen-Schmidt Reaction: This reaction is an aldol condensation between an aldehyde and a ketone in the presence of a base. In this reaction, benzaldehyde reacts with acetaldehyde (CH3CHO) under basic conditions (dil. NaOH) to form cinnamaldehyde.
Therefore, the correct sequence of reactions to achieve the transformation from benzoyl chloride to cinnamaldehyde is:
Rosenmund's reduction followed by Claisen-Schmidt's reaction
This sequence effectively accomplishes the conversion depicted in the transformation diagram. The Rosenmund's reduction firstly converts benzoyl chloride to benzaldehyde, and then the Claisen-Schmidt reaction facilitates the formation of cinnamaldehyde by reacting benzaldehyde with acetaldehyde.
Important Questions from Chemistry (CUET PG) Mixed
The final product (P) is
Consider the following statements with respect to citral
(A). Geranial and Neral are geometrical isomers of citral.
(B). It forms geranic acid on heating with potassium hydrogen sulphate.
(C). It gives 6-methylhept-5-en-2-one on treating with potassium carbonate.
(D). On oxidation with silver oxide it yields Laevulic acid.
Choose the correct answer from the options given below:
Above conversion is carried out using
The final product (D) in the above conversion is
The major product (P) in the following transformation is
