Which of the following compounds is used in the synthesis of the parent compound of tranquilizers and sedative medicines (barbiturates) by condensation with urea?
Correct answer: C. Malonic ester
- A. Barbituric acid
- B. Barbital
- C. Malonic ester
- D. Parabanic acid
Explanation
The core structure of barbiturates is barbituric acid. This parent compound is synthesized through the condensation reaction of a malonic ester derivative (like diethyl malonate) with urea.
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Industrial chemistry applies chemical reactions and material properties to the manufacture of adhesives, dyes and polymers. Coverage includes addition and condensation polymerisation, thermoplastics and thermosetting polymers, the structural basis of colour in dyes, and how adhesive composition enables bonding between surfaces.
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