Discussion Forum : Nomenclature Of Organic Compounds
Question -


The IUPAC name of
The IUPAC Name Of

Options:
A .   3-(Formylmethyl)hexanal
B .   2-(Formylmethyl)butane-1,4-dicarbaldehyde
C .   2-(Formylmethyl)butane-1,4-tricarbaldehyde
D .   None of the above
Answer: Option A
:
A
The given compound is:

The IUPAC Name Of


Here we include as many -CHO groups as possible in the longest chain.Thus it is numbered as above (to give lowest possible number to the substituents -CH2CHO). This group is named formylmethyl.
6 carbons = hex.
Since there are no carbon - carbon multiple bonds, primary suffix = ane; secondary suffix = dial.


Hence the IUPAC name is


(a) 3 -(Formylmethyl)hexanal


Note the parentheses indicating substituted substituent.
The compound could also be named 3-propylpentanedial



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