Question

$IUPAC$ name of the compound given below is

• A. $(2R,3Z)$ -$7$-phenylhept-$3$-en-$2$-ol
• B. $(2S,3Z)$-$7$-phenylhept-$3$-en-$2$-ol
• C. $(2R,3E)$-$7$-phenylhept-$3$-en-$2$-ol
• D. $(2S,3E)$-$7$-phenylhept-$3$-en-$2$ -ol

Answer 1

Answer: (D)

Configuration at the chiral centre at $C-2$ is $S$. Geometry at the double bond is $E$
$\therefore IUPAC-(2S,3E)$ )-$7$-phenylhept-$3$-ene-$2$-ol