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JEE Advance - Chemistry (2012 - Paper 2 Offline - No. 11)

In the following reaction sequence, the compound J is an intermediate.

J(C9H8O2) gives effervescence on treatment with NaHCO3 and a positive Baeyer's test.

In the following reaction sequence, the compound J is an intermediate.

J(C9H8O2) gives effervescence on treatment with NaHCO3 and a positive Baeyer's test.

In the following reaction sequence, the compound J is an intermediate.

J(C9H8O2) gives effervescence on treatment with NaHCO3 and a positive Baeyer's test.

The compound I is
IIT-JEE 2012 Paper 2 Offline Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 33 English Option 1
IIT-JEE 2012 Paper 2 Offline Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 33 English Option 2
IIT-JEE 2012 Paper 2 Offline Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 33 English Option 3
IIT-JEE 2012 Paper 2 Offline Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 33 English Option 4

Explanation

In the given reaction, an aromatic aldehyde is condensed with an acid anhydride (Perkin condensation) in the presence of a base to form $$\alpha$$,$$\beta$$-unsaturated acid (cinnamic acid). This gives effervescence on reaction with NaHCO3 and positive test with Bayer's reagent (1% alkaline KMnO4).

IIT-JEE 2012 Paper 2 Offline Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 33 English Explanation

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