The IUPAC name of C_6H_5CH=CH-COOH is : - Vidyadip

MCQ

The $IUPAC$ name of $C_6H_5CH=CH-COOH$ is :

A
cinnamic acid
B
$1-$ phenyl $-2-$ carboxy ethane
✓
$3-$ phenyl prop $-2-$ enoic acid
D
dihydroxy $-3-$ phenyl propionic acid

✓

Answer

Correct option: C.

$3-$ phenyl prop $-2-$ enoic acid

c
The IUPAC name of $C _6 H _5 CH = CH - COOH$ is $3$ - Phenyl prop-$2$ - enoic acid.

The parent compound is propanoic acid. It contains a double bond at second carbon atom.

It also contains a phenyl group at third carbon atom. Its common name is cinnamic acid.

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