DAT Destroyer 2014 OChem Question #36

[woosh]

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One of the naming questions.
The answer is 2-oxooctanedioic acid. but another choice was 2-ketooctanedioic acid.

When is -oxo and -keto supposed to be used when naming, since they both refer to the ketone group?

thanks

 

[NoMorWastedTime]

If an aldehyde or carboxylic functional group is present along with the ketone, the ketone becomes an oxo- prefix. So, in the case of this molecule:

This would be called 2-oxopropanal.

(source: http://www.learnchem.net/orgo/ket_nom.shtml)

 

[woosh]

thank you!