Which, if any, of the following pairs of reagents could be used to prepare 2-phenyl-2-butanol?

C H_{3} C H_{2} M g B r + P h - O | | C - C H_{3}

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C H_{3} C H_{2} M g B r + C_{6} H_{5} C H_{2} O | | C H

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C H_{3} M g I + C_{6} H_{5} C H_{2} O | | C H_{3}

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C_{6} H_{5} M g C l + C H_{3} O | | C C H_{2} C H_{2} C H_{3}

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Solution

The correct option is A $C H_{3} C H_{2} M g B r + P h - O | | C - C H_{3}$
When Ethyl magnesium bromide (Grignard's reagent) reacts with acetophenone in presence of dry ether followed by hydrolysis, they form 2-phenyl-2-butanol as a product.

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Similar questions

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

C H_{3} - C H = C H - C H_{2} - O | | C - C H_{3} \to C H_{3} - C H = C H - C H_{2} - O | | C - O H

C H_{3} - O | | C - C H_{3}

H - O | | C - C H_{3}

P h - O | | C - P h

C H_{3} - C \equiv C - C H_{3}

C H_{3} - C O - C H_{3} \to C H_{3} - C H - C H_{3}

O H

C_{6} H_{5} - C H_{2} - C H_{3} \to C_{6} H_{5} - C O O^{-} K^{+}

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