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Nomenclature of Carbonyls

Which of the ...

Question

Which of the following options are correct regarding A?

A

A contains methyl group

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B

A contains ethyl group

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C

A contains

- O H

group

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D

A contains a six membered ring

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Solution

The correct options are
A A contains methyl group
C A contains $- O H$ group
D A contains a six membered ring
Explanation:
In this reaction, a nucleophilic attack by Grignard reagent, on the ring carbon atom of the epoxide leads to ring opening, followed by formation of alcohol upon protonation. This is explained in the image below.

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