Self condensation of two moles of ethyl acetate in presence of sodium ethoxide yields:
- ethyl butyrate
- acetoacetic ester
- methyl acetoacetate
- ethyl propionate
The Correct Option is B
Solution and Explanation
The condensation of two moles of ethyl acetate in the presence of sodium ethoxide results in the formation of acetoacetic ester. This reaction is known as a Claisen condensation and involves the combination of two molecules of ethyl acetate to produce acetoacetic ester.
Reaction: 2CH₃COOC₂H₅ + 2NaOC₂H₅ \(→\) CH₃COCH₂COOC₂H₅ + 2C₂H₅OH
So, the correct option is (B): acetoacetic ester
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Concepts Used:
Aldehydes, Ketones, and Carboxylic Acids
Aldehydes, Ketones, and Carboxylic Acids are carbonyl compounds that contain a carbon-oxygen double bond. These organic compounds are very important in the field of organic chemistry and also have many industrial applications.
Aldehydes:
Aldehydes are organic compounds that have the functional group -CHO.
Preparation of Aldehydes
Acid chlorides are reduced to aldehydes with hydrogen in the presence of palladium catalyst spread on barium sulfate.
Ketones:
Ketones are organic compounds that have the functional group C=O and the structure R-(C=O)-R’.
Preparation of Ketones
Acid chlorides on reaction with dialkyl cadmium produce ketones. Dialkyl cadmium themselves are prepared from Grignard reagents.
Carboxylic Acid:
Carboxylic acids are organic compounds that contain a (C=O)OH group attached to an R group (where R refers to the remaining part of the molecule).
Preparation of Carboxylic Acids
Primary alcohols are readily oxidized to carboxylic acids with common oxidizing agents such as potassium permanganate in neutral acidic or alkaline media or by potassium dichromate and chromium trioxide in acidic media.