Question

Name the following compound according to IUPAC system of nomenclature: CH₃CH=CHCHO

Answer 1

pentenal is the Ans

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Answer 2

CH3CH=CHCHO can be named as But-2-en-1-al in the term of IUPAC name,

The first step is to cover the longest chain, you need to make sure that a maximum number of carbon atoms are covered up by the chain.

Then you will cover the child chain and will attack it with the number on which the child is attached to.