Question

The IUPAC name of

• A. 3-(Formylmethyl)hexane-1, 6-dial
• B. 2-(Formylmethyl)butane-1, 4-dicarbaldehyde
• C. 2-(Formylmethyl)butane-1, 4-tricarbaldehyde
• D. None of the above

Answer 1

Answer: (A)

The explanation for the correct option:

Option(D)None of the above

The given compound is:

Here we include as many -CHO groups as possible in the longest chain. Thus it is numbered as above (to give the lowest possible number to the substituents -$C{H}_2-CHO$). This group is named formyl methyl.

6 carbons = hex.

Since there is no carbon-carbon multiple bonds, primary suffix = ane; secondary suffix = dial.

Hence the IUPAC name is 3 -(Formylmethyl)hexanal

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

Hence, Option(D)None of the above is the correct option