Question

Identify the major product obtained in the following reaction: 

• A.
• B.
• C.
• D.

Answer 1

The Correct Option is D

To determine the major product of the given reaction, we need to analyze the type of reaction and the reagents involved. The starting compound is a cyclic anhydride derived from benzene, which undergoes a reaction with silver diammine complex and hydroxide ions under heat.

Here is the step-by-step analysis:

1. The reaction involves oxidative decarboxylation by the silver diammine complex, \([\text{Ag(NH}_3\text{)}_2]^+\). This complex is known to participate in reactions where it oxidizes aldehydes to carboxylates and facilitates certain decarboxylation reactions.
2. The hydroxide ion \(\text{OH}^−\) and heat \(\Delta\) aid in the reaction, possibly triggering hydrolysis and further oxidation steps.
3. The major product is formed by a series of oxidation and decarboxylation steps involving the benzene ring and the interaction with the hydroxide ions.

Given the reagents and conditions, the following transformations take place:

• The anhydride ring opens due to the attack by hydroxide ions.
• Subsequently, the silver diammine complex oxidatively removes carbonyl groups leading to decarboxylation.
• The heat \(\Delta\) intensifies these reactions, promoting the formation of a stable end product.

The correct major product of the reaction, as given in the options and considering the reaction mechanism, corresponds to the correct image below:

This analysis effectively identifies the major product through understanding the oxidative and decarboxylation processes encouraged by silver diammine complex and hydroxide ions under heat.