Question

The IUPAC name of the $C{H_3} - CO - C{H_2} - COOH$is:-
 A. 3-ketobutanoic acid
 B. 2-ketobutanoic acid
 C. 4-ketobutanoic acid
 D. 3-oxopropanoic acid

Answer 1

Hint: In order to answer the question, first we have to check whether any type of acid and ketone is present in the compound or not. Then know the role of suffix and prefix in the IUPAC name of the given compound.

Complete step by step answer:In this compound, both ketone and the carboxylic group is present. Priority is given to the carboxylic group at C-1, and the ketonic group at C-3 is treated as a substituent. Thus the prefix used is “keto” and the suffix used is “oic acid”.
-Generally, it is known as Acetoacetic acid or diacetic acid, which is the organic compound. It is the simplest beta-keto acid, and it is unstable, like other members of this class. It is a weak acid. Its chemical formula is ${C_4}{H_6}{O_3}$.

Hence, the correct option is (A). 3-keto butanoic acid.

Note: Ketones render carboxylic acids with the fitting oxidant. It is genuinely simple and can be accomplished with smooth oxidants like silver oxide. Silver oxide is an exceptionally smooth oxidant in reality that is very specific to aldehydes.