Question

The IUPAC name of the compound $CNC{H}_{2}CHCNC{H}_{2}CN$ is

• A. 1,2,3-tricyanopropane
• B. 1,2,3-cyanopropane
• C. 1,2,3-propane trinitrile
• D. 3-cyano-1,5-dinitrile

Answer 1

Answer: (B)

$\underset{CN}{\underset{|}{C{H}_2}}-\underset{CN}{\underset{|}{\mathrm{CH}}}-\underset{CN}{\underset{|}{C{H}_2}}$ IUPAC name 1,2.3-tricyanopropane According to modern recommendations, if there are more than two same functional groups in a compound, they are not included in the root chain.