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Reductions Involving Aldehydes or Ketones

Which of the ...

Question

Which of the following is true for the given reaction ?

A

Product is optically acitve

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B

Product is optically inactive

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C

Product is mixture of two diastereomers

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D

Product has no chiral carbon

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Solution

The correct option is A Product is optically acitve
$C_{6} H_{5} C O C_{5} H_{9} i) L i A l H_{4} - ------- \to i i) N H_{4} C l (a q .) P h C (O H) H C_{5} H_{9}$
here the reactant $L i A l H_{4}$ acts as a reducing agent.
Since the product contains a chiral center, thus the compound is optically active.

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(A)

C H_{3} - C H = C = C H_{2}

C H_{3} - C H = C = C H - C H_{3}

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