Question
Chemistry Question on Aldehydes, Ketones and Carboxylic Acids
The IUPAC name of CH3CH=C-CHO-CH2-CH3 is:
A
3-Formyl-2-pentene
B
2-Ethylbut-2-enal
C
3-Ethylbut-3-enal
D
2-Ethylcrotonaldehyde
Answer
2-Ethylbut-2-enal
Explanation
Solution
The correct answer is option (B): 2-Ethylbut-2-enal.
The IUPAC name is 2 propanone. As the ketone group is in the middle the numbering of the carbon chain can be done from either side.