🦷 DAT Exam Prep

The Diels-Alder reaction is a:

A Nucleophilic substitution

B [4+2] cycloaddition between a diene and a dienophile forming a six-membered ring

C Elimination reaction

D Radical reaction

✓ Correct Answer: Option B

Diels-Alder: concerted pericyclic [4+2] reaction. Conjugated diene + dienophile → cyclohexene product. Stereospecific.