Q3 of 26 Page 1

Write the IUPAC name of the given compound:


Iupac name of the given compound is

3-methylbut-2-en-1-ol.


Explanation:



Functional group gets the priority over double bond. So, the numbering starts from carbon attached to functional group. –OH is in the 1st position, double bond gets the no. 2(as it is found after the 2nd carbon), a methyl group is attached to the 3rd carbon and the parent carbon chain consists of 4 carbon atoms so it gets the root word ‘but’.


Methyl group is a substituent so it is written as a prefix whereas functional group and double bond are written as suffix.


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