Question

Question: Draw the products formed when each diene is treated with O₃ followed by CH₃SCH₃.

a.

b.

c.

Short answer

Answer

a.

b.

c.

Step-by-step solution

Oxidative cleavage of alkenes

The oxidative cleavage of alkenes is also known as ozonolysis. The double bonds of alkene are cleaved to form aldehydes or ketone.The general reaction scheme is given below:

Oxidation cleavage of alkenes

Ozonolysis using  O3 / CH3SCH3

The ozone reacts with the alkene to form an unstable intermediate that is known as molozonide. This intermediate is converted to carbonyl compounds using the reagent dimethyl sulphide.

Determining the products

The given compounds are treated with ozone and dimethyl sulohide to give the following products:

a.

Ozonolysis of alkene

b.

Ozonolysis of alkene

c.

Ozonolysis of alkene