The IUPAC name of the molecule is

Question

The IUPAC name of the molecule <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/3cb3d6cd3f15f95e8c3d611e607ced13-.png" /> is (A) 4-oxo-2, 3-dimethyl pent-2-en-1-oic acid (B) 2-carboxy-3 methyl pent-2-en-3-one (C) 4-carboxy-3 methyl pent-3-en-2-one (D) 2, 3-dimethyl-4-oxo pent-2-en-1-oic acid

Tardigrade Admin · Accepted Answer

The order of preference is -COOH > > C=O Thus, <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/3620cfb1014f9ec6de9f7901138c5694-.png" /> 2, 3-dimethyl-4-oxopent-2-en-1-oic acid

Q. The IUPAC name of the molecule is

4-oxo-2, 3-dimethyl pent-2-en-1-oic acid

2-carboxy-3 methyl pent-2-en-3-one

4-carboxy-3 methyl pent-3-en-2-one

2, 3-dimethyl-4-oxo pent-2-en-1-oic acid

The order of preference is $- COO H >> C = O$
Thus,
$2, 3$ -dimethyl- $4$ -oxopent- $2$ -en- $1$ -oic acid

Q. The IUPAC name of the molecule is

4-oxo-2, 3-dimethyl pent-2-en-1-oic acid

2-carboxy-3 methyl pent-2-en-3-one

4-carboxy-3 methyl pent-3-en-2-one

2, 3-dimethyl-4-oxo pent-2-en-1-oic acid

The order of preference is −COOH>>C=O Thus, 2,3-dimethyl-4-oxopent-2-en-1-oic acid

The order of preference is $- COO H >> C = O$
Thus,
$2, 3$ -dimethyl- $4$ -oxopent- $2$ -en- $1$ -oic acid