Question

Write IUPAC names of the products obtained by the ozonolysis of the following compounds:

1. Pent-2-ene
2. 3,4-Dimethyl-hept-3-ene
3. 2-Ethylbut-1-ene
4. 1-Phenylbut-1-ene

Answer 1

(i) Pent-2-ene undergoes ozonolysis as:

The IUPAC name of Product (I) is ethanal and Product (II) is propanal.

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(ii) 3, 4-Dimethylhept-3-ene undergoes ozonolysis as:

The IUPAC name of Product (I) is butan-2-one and Product (II) is Pentan-2-one.

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(iii) 2-Ethylbut-1-ene undergoes ozonolysis as:

The IUPAC name of Product (I) is pentan-3-one and Product (II) is methanal.

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(iv) 1-Phenylbut-1-ene undergoes ozonolysis as:

The IUPAC name of Product (I) is benzaldehyde and Product (II) is propanal.