The IUPAC name of C H _ 3 -CH-C-COOH | , , , , , , , , , , , , ,|… - Vidyadip

MCQ

The $IUPAC$ name of $\begin{matrix}
C{{H}_{3}}-CH-C-COOH \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\, \\
C{{H}_{3}}\,\,\,\,\,O\,\,\,\,\,\, \\
\end{matrix}$ is

A
$3-$ Methyl $-2-$ oxobutanecarboxylic acid
B
$2-$ Methyl $-3-$ oxobutan $-4-$ oic acid
✓
$3-$ Methyl $-2-$ oxobutanoic acid
D
$3-$ Methyl $-1,2-$ dioxobutanoic acid

✓

Answer

Correct option: C.

$3-$ Methyl $-2-$ oxobutanoic acid

c
Here priority of $- COOH$ is over keto group and here numbering will be done from right end.

$\therefore$ IUPAC name: $3$ - methyl-$2$- oxobutanoic acid.

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