Question

What is the major product in the following reaction?

$\xrightarrow[2. \text{conc. } H_2SO_4]{1. \text{alc. KOH}}$ X (Major)

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

Answer: (D)

4

Answer 2

The reaction proceeds via elimination of HBr to form an $\alpha, \beta$-unsaturated ketone, followed by intramolecular Friedel-Crafts alkylation to form 2-methyl-1-tetralone.