Mechanosynthesis of β-Naphthol Derivatives via Triflic Anhydride-Mediated Reaction of Arylacetic Acids with Arylalkynes

The mechanosynthesis of β-naphthol derivatives was accomplished through triflic anhydride-mediated cyclization reactions of arylacetic acids with arylalkynes in moderate to good yields by ball milling at room temperature. The present protocol featured solvent-free and simple conditions, a short reaction time, and easily available and inexpensive reagents.