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Preparation of Carboxylic Acids

What is the s...

Question

What is the structure of $E$ ?

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Solution

$H O O C - C H_{2} C H_{2} - C H_{2} \equiv C - C H_{2} - C H_{2} C O O H H^{+} / K M n O_{4} - ------- \to 4 H O O C - C H_{2} - C H_{2} - C H_{2} - O | | C - C | | O - C H_{2} - C H_{2} - C H_{2} - C O O H$
${K M n O}_{4}$ is an oxidising agent.Since product contain two adjacent ketone group .Hence reactant must contain alkyne.

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Q. When aromatic hydrocarbons are treated with chloroform and aluminum chloride, the following reaction sequence is observed.

A r H C H C l_{3} - --- \to A l C l_{3} A A r H - -- \to A l C l_{3} B A r H - -- \to A l C l_{3} F

B A l C l_{3} - -- \to C A r_{3} C H - --- \to D + E

What is the structure of compound C?

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