Question

Intramolecular claisen condensation given by diester is known as:

• A. Perkin reaction
• B. Dieckmann condensation
• C. Mannich reaction
• D. Reformatsky reaction

Answer 1

The correct option is B Dieckmann condensation

Dieckmann condensation is the intramolecular condensation reaction of diesters with a strong base to give $\beta$-ketoesters. As the nucleophile is an ester, therefore it is also an intramolecular condensation of Diester.