Structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is:

1 2013 NEET Organic Chemistry - Some Basic Principles and TechniquesIUPAC nomenclature Hard
Structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is:
A -
B -
C -
D -

Detailed Solution

Number the chain from the –COOH carbon (C-1): –OH on C-2, ethyl on C-3, C=C between C-3 and C-4, methyl on C-4, C≡C between C-5 and C-6.
$HC\equiv C-C(CH_3)=C(C_2H_5)-CH(OH)-COOH$

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