Question

Treatment of cyclopentanone(Refer image) with methyl lithium gives which of the following species?
(a) Cyclopentanonyl cation
(b) Cyclopentanonyl radical
(c) Cyclopentanonyl biradical
(d) Cyclopentanonyl anion

Answer 1

hey mate  here is your answer

d) cyclopentanonyl anion

Answer 2

Answer: (d) Cyclopentanonyl anion is the correct answer.

Explanation:

Treatment of cyclopentanone(Refer image) with methyl lithium gives:

Cyclopentanone has formula (CH2)4CO

Methyl lithium has formula CH3Li

When these 2 react

There's an active proton on cyclopentanone

The methyl lithium will take the the active proton from the cyclopentanone

It will then form lithium in place of the alpha hydrogen

The reaction will also form methane.

It will also form a intermediate product

Hence the final product will be Lithium Cyclopentanonyl anion.

Intermediate product is that product which requires further processing.