question_answer

Barbituric acid is a condensation product of A and B. A, B are

A)  \[{{H}_{2}}NCON{{H}_{2}},\text{ }H{{O}_{2}}CC{{O}_{2}}H\]

B)  \[{{H}_{2}}NCON{{H}_{2}},\text{ }C1COC{{H}_{3}}\]

C)  \[{{H}_{2}}NN{{H}_{2}},ClCOC{{H}_{2}}COCl\]

D)  \[~{{H}_{2}}NCON{{H}_{2}},\text{ }ClOCC{{H}_{2}}COCl\]

Correct Answer: D

Solution :

                 Barbituric acid is an organic compound based on a pyrimidine heterocyclic skeleton. It is the parent compound of a large class of barbiturates that have central nervous system depressing properties. It may be synthesised as follows : or