Question

Explain the mechanism of a nucleophilic attack on the carbonyl group of an aldehydes or a ketones

Answer 1

the bayer villiger oxidation is the oxidative cleavage of a carbon carbon bond adjacent to a carbonyl which converts ketones to esters and cyclic ketones to lectons.

Answer 2

Answer:

Explanation:

In aldehyde or ketone,there is a carbonyl group (C=O bond).

O is electronegative,so the electron cloud at double bond is attracted by O, making the double bond single,and Carbon acquires partial positive charge and O acquires negative charge.

Nucleophiles attack nucleophilic centres, that is positive charged centres.The electron withdrawing groups increase the nucleophilicity of carbon further.The nucleophile attacks carbon, and a product is obtained.SN1 and SN2 reactions work on this principle only.

Example:-Reaction of alkyl halide with aqueous KOH.