Question

c6h5-ch2-ch2-ch=ch2 write its IUPAC name

Answer 1

it's iupac name is 3-phenyl propanoic acid

Answer 2

THE IUPAC NAME OF  $C_{6} H_{5} -CH_{2} -CH_{2} -CH=CH_{2}$  IS 4-PHENYL-1-BUTENE.

Explanation:

• When a compound contains a phenyl group as a substituent and a double bond, the double bond will be given priority.
• The numbering will start from the double bond present at the terminal. The 4th carbon is attached to a phenyl ring. It will be named as 4-phenyl.
• the straight chain contains 4 carbon atoms, so it be named "but". A double bond is present so it will have a suffix - ene.
• And as the double bond is present between $C_{1}$ and $C_{2}$1-butene or but-1-ene.
• Therefore, the IUPAC name will be 4-Phenyl-1-butene.